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just trying to figure things out.


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A major interest: Fact Finding
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My Latest Comments


Comments for Sunday June 16, 2019, thru Saturday, June 22, 2019:

June 16, 2019 - I spent most of yesterday working on the overhaul of my paper about Radar Guns and Einstein's Theories, and it looks like I should be able to upload it to vixra.org tomorrow, which should mean it will be publicly available the next day.

I'm beginning to think that, for some people, discussing the physics of radar guns is like discussing a conspiracy theory.  No one wants to argue about things that have not been satisfactorily proven one way or the other to all parties.  NASA has a web page titled "How Do Police Radars Really Work?" that describes in detail how radar gun can emit a single photon, and when compared with the return photon, the gun can determine the speed of the target.  But if countless mathematicians do not believe what NASA says or even that photons exist, who wants to get in the middle of such a disagreement?

Albert Einstein and Richard Feynman may have clearly stated that light consists of photons, not waves, and there may be a mountain of evidence to confirm their statements, but if countless mathematicians still believe and will argue that light consists of waves, who wants to get in the middle of such a disagreement?

I don't particularly want to get in the middle of that, but I have, of course.  The problem is that finding new evidence which cannot be denied is no easy task, and it is made even more difficult when no one seems willing to provide details about how radar guns work. So, I'm just bumbling around, trying new research ideas while continuing work on an overhaul of my paper about Radar Guns and Einstein's Theories.

When reading about police radar guns you also get the distinct impression that more and more police departments are switching to lidar guns.  Lidar guns are not only more accurate than radar guns, they will not get you into any arguments about the Doppler Effect, since lidar does not utilize the Doppler Effect.  Also, many mathematicians even seem to accept that a lidar gun sends out just one "wave" at a time, waiting for that "wave" to return before sending another.  With radar guns they insist the the gun sends a continuous stream of waves and receives back a continuous series of waves at the same time.

I'd read somewhere that the State of Pennsylvania does not allow local police departments to use radar guns.  Only the State Police can use them.  Checking on it, I found a web site that says,
The only law enforcement agency in Pennsylvania that is allowed to operate police radar guns is the State Police and only when in stationary mode.
Hmm.  I'll have to do some more research to see if I can find why they can only use radar guns in "stationary mode."   That same web page says:
State procurement records over the past 5-years indicate that the following police radar guns are used by both state and local police agencies.
Decatur Genesis K-band
Kustom Signals Falcon HR K-band
Kustom Signals KR10 K-band
At the web page HERE I found the picture shown below.  The radar gun the officer is holding is a Decatur Genesis K-band.
 
PA State Police Officer with radar gun

There is a power cord running from the bottom of the gun to a cigarette lighter adapter plug within the car. You cannot see much of it because it is hidden behind the officer's hand.

The multi-part Kustom Signals KR10, shown below, consists of a dash-mounted radar measuring unit with an emitter that gets mounted somehow on the outside of the squad car, or perhaps placed on the dash next to the measuring unit.  There's also a button the officer pushes to turn the radar on and off.  

Kustom Signals KR10

The Falcon HR, shown below, can also be used as a hand-held device.  You just remove it from its dash-mount.  I tried to get information about it from Kustom Signals, but they didn't respond to my emails.

Falcon HR radar gun
 
So, the research led to nothing of value, just more questions.  Sigh.


Comments for Sunday June 9, 2019, thru Saturday, June 15, 2019:

June 14, 2019 - I've finally gotten back to work on the overhaul of my paper about Radar Guns and Einstein's Theories.  I spent most of yesterday afternoon on it, and I'm hoping to have a new version on-line next week.

Meanwhile, yesterday evening I finished listening to the audio book version of Memory Man by David Baldacci. 

Memory Man

The audio book is 13 hours and 17 minutes long, and it took me 3 days (actually 3 evenings) to listen to it.  Although some of the crimes in the book were a little too grim for me, and I didn't quite buy the culprits' motivation, it was still a very enjoyable book, and I already have the next book in the series in my MP3 player.  There are evidently 5 books in the series.

They are about a detective named Amos Decker who was injured while playing football for the NFL, and the injury resulted in him having a photographic memory.  So, he spends a lot of time going through his mental "DVR" playing back things he saw to see how the pieces fit together.  Unfortunately, that photographic memory won't allow him to forget the images of finding his wife, daughter and brother brutally murdered.  And those are just the first crimes committed by the killer Amos Decker must track down.  The second is a school shooting, which seems unrelated, except that it happened at the high school Amos Decker once attended.    

The book is a "page turner" that keeps you interested, maybe even more so if there are no actual pages to turn.

June 13, 2019
- I think the discussions on sci.physics.relativity have finally come to an end.  There haven't been any new posts in the past 24 hours, and I'm not in the mood to post anything new. 

Now I just have to get back to work on the overhaul of my Radar Guns and Einstein's Theories paper.  I've been spending my days researching radar guns looking for something - anything - that would provide information on what make and model of police radar guns will show "actual" speeds instead of "relative" speeds when the gun is inside a patrol car going 60 mph and the gun is pointed at a tree.  The "actual" speed of the tree is, of course, zero.  The "relative" speed is 60 mph.  The Bushnell Speedster sports radar gun will show the "relative" speed of 60 mph.  But I still haven't been able to find anything about which make and model of radar guns gives "actual" speeds.  The people on sci.physics.relativity, of course, argue that it is impossible for any radar gun to give "actual" speeds, since any "actual" speed would involve the speed that the earth rotates, the speed that the earth moves around the sun, the speed that the sun moves around the center of the Milky Way Galaxy, etc.

I've sent emails to a couple radar gun manufacturers, to some people on the Internet who seem knowledgeable about radar guns, and I left a message with my local police department asking about what make and model radar gun they use, but so far I've gotten no responses. 

Meanwhile, the other day I realized that a warning notice had vanished from my two blogs, Debating the Anthrax Attacks of 2001 and My Thoughts on the Changing World.  This message had been displayed on the "stats" page since February whenever I checked the statistics for either blog:


Following the announcement of Google+ API deprecation scheduled for March 2019, a number of changes will be made to Blogger’s Google+ integration on 4 February 2019.

Google+ widgets: Support for the “+1 Button”, “Google+ Followers” and “Google+ Badge” widgets in Layout will no longer be available. All instances of these widgets will be removed from your blog.

+1 buttons: The +1/G+ buttons and Google+ share links below blog posts and in the navigation bar will be removed.

Please note that if you have a custom template that includes Google+ features, you may need to update your template. Please contact your template supplier for advice.

Google+ Comments: Support for Google+ comments will be turned down, and all blogs using Google+ comments will be reverted back to using Blogger comments. Unfortunately, comments posted as Google+ comments cannot be migrated to Blogger and will no longer appear on your blog.

And on March 30, I received an email from Google that began with this:

You’ve received this email because you have content in Google+ for your personal (consumer) account or a Google+ page you manage.

This is a reminder that on April 2, 2019 we’re shutting down consumer Google+ and will begin deleting content from consumer Google+ accounts. Photos and videos from Google+ in your Album Archive and your Google+ pages will also be deleted.

Downloading your Google+ content may take time, so get started before March 31, 2019.

So, I made copies of both blogs and I've been waiting for the blogs to disappear.  They're still there.  And some time in the past couple weeks the warning notice vanished.  The warning notice and the email were mostly gibberish to me, so I can't even be certain that they were referring to my blogs.  I saw that they used the term Google+ all through the warning.  I didn't even now what Google+ was, and I never bothered to research it.  Checking on it this morning, I found that Wikipedia says,

Google+ was an Internet-based social network owned and operated by Google. The network was launched on June 28, 2011 in the attempt to challenge other social networks and for a time linked other Google products like Blogger and YouTube. The service, Google's fourth foray into social networking, experienced strong growth in its initial years, although usage statistics varied, depending on how the service was defined. Three Google executives oversaw the service, which underwent substantial changes that led to a redesign in November 2015.

Due to low user engagement and disclosed software design flaws that potentially allowed outside developers access to personal information of its users,[4] the Google+ developer API was discontinued on March 7, 2019 and Google+ was shut down for business use and consumers on April 2, 2019.
Ah!  Google+ was shut down, but blogspot.com is still working.  So, if I wanted to, I could create a page on my blog about radar guns and Einstein's theories. Hmm. 

June 11, 2019
- When I checked the sci.physics.relativity discussion forum this morning to see if there were any responses to my posting of the link to the NASA web page that describes a radar gun emitting a single photon to get the speed of a vehicle, there were only two responses worthy of mention.  The post from Paparios stated:
First note that h=6.63x10^-34 joule-sec, then the energy of ONE photon is almost 0 (the actual value at 1 Hz is 6.62606957 × 10^−34 joules, which is the reason a radar signal needs zillions of photons to even get a few photons back to the receiver.

The article is poorly written (for instance n is not defined 
I was kind of surprised to see that Paparios seemed to accept the idea that a radar gun emits photons.  But complaining that the "The article is poorly written" will likely allow him to ignore what the article says. 

The "n" he is referring to is in this statement:

Since the photon energy, E, is equal to hn, where h = Planck's constant = 6.63 X 10-34 j sec, then

deltaE = h deltafrequency
I'm no mathematician, but clearly n is whatever you multiply Planck's constant by.  In this case it would appear to be the photon's oscillation frequency.  But Paparios (and other mathematicians on the forum) do not believe that photons oscillate, so that may be where he gets confused.

The other post, from Michael Moroney, stated:
One thing to note is that it never claims the photon is received at a speed of c+v, unlike Ed's claim. At least they got that right.

It seems to be part of some dumbed down 'science & math for kids or laymen' set.
Claiming something is "dumbed down" is a mathematician's way of saying something does not fit their mathematics-based beliefs and therefore must have been deliberately modified to be wrong.  When I look at what the article says, I translate this:
Consider a single photon from the police radar. The photon must interact with the approaching car for a finite time while it is being reflected. Call this time, deltat. Let an interaction force, ± f, exist between the photon and the car for the time, deltat. The force exerted by the photon on the car, +f, acts to remove energy from the car. The force exerted by the car on the photon, -f, acts to add energy to the photon. Therefore, we expect the photon frequency to increase.
into this:
When a photon is emitted from a police radar gun, the photon will interact with an atom in the approaching car for a period of time while the photon is being reflected.  Call this "reaction time."  During the reaction time, the photon will exert a force upon the atom.  The force is positive if the car is approaching, and it is negative if the car is moving away from the radar gun.  Therefore we can expect the return photon's oscillation frequency to increase if energy is added to the photon.   
There is no dispute that the photon travels at the speed of light.  The only dispute is whether it hits the approaching car at c or at c+v.  How can the photon add to the car's energy when the car is approaching and subtract from the car's energy when the car is moving away if the velocity (v) of the car is not a factor?  A couple days ago, I told Mr. Moroney and Paparios that I wasn't going to respond to any more of their posts in that thread, so maybe they'll see the comments I've written above.

Meanwhile, I'm still waiting for Tom Roberts to respond.  If he does, he'll almost certainly also say that the NASA article is "dumbed down," which is his way of saying the article is wrong, and it is therefore either a lie or the people at NASA are just too dumb to understand how police radars and photons actually work. 


June 10, 2019
- Yesterday I once again tried to end my latest round of arguments on the sci.physics.relativity discussion forum.  The latest statistics for the thread show 330 posts and 795 views since I started the thread a little over two weeks ago, on May 24th.  The arguments had recently degenerated into nothing more than pointless opinion vs opinion debates, people calling me names, and a lot of inane nitpicking about the meanings and usage of words.  But, it was a worthwhile exercise resulting in me learning a lot about how they think.

Then, while doing research this morning, I came across a web page on NASA's web site that I had seen before and forgot about.  It is titled "How Do Police Radars Really Work?" Click HERE to view it.  It is about using a single photon from a radar gun to measure the speed of an oncoming car.  That is what my paper is all about, and the people on the forum endlessly argued radar guns use waves, not photons.  So, of course, I had to post the link to the sci.physics.relativity forum to see what they will have to say about it.  (I also tried contacting the authors at NASA, but none of their addresses work.)

Meanwhile, yesterday evening I finished listening to another audio book.  It was a science fiction novel, An Absolutely Remarkable Thing, by Hank Green.

An Absolutely Remarkable Thing

I'd first heard about the book a month or two ago on The Geek's Guide to the Galaxy podcast.  So, I put my name on the waiting list at my local library, and the 9-hour 27-minute audio book became available on June 5. 

It was a truly enjoyable book.  And very funny in parts.  I think that is why I put it on the waiting list, because it was said to be funny, and funny books are what I am looking for the most right now.

Here is how Amazon describes the story: "Roaming through New York City at three a.m., twenty-three-year-old April May stumbles across a giant sculpture. Delighted by its appearance and craftsmanship—like a ten-foot-tall Transformer wearing a suit of samurai armor—April and her best friend, Andy, make a video with it, which Andy uploads to YouTube. [She calls the statue "Carl" as she talks with it on the video.] The next day, April wakes up to a viral video and a new life. News quickly spreads that there are Carls in dozens of cities around the world—from Beijing to Buenos Aires—and April, as their first documentarian, finds herself at the center of an intense international media spotlight."

And then things get really weird.  It seems that someone is posting coded messages on Wikipedia's article about the statues by leaving out letters in certain words and by jumbling up the reference numbers.  April, her friends and others around the Internet world try to decipher the messages.  Then April and other people start having strange identical dreams, and as the messages are decoded and the dreams become more complex it becomes clear that the statues are alien. 

Then things get really interesting.  The President of the US gets involved. Conspiracy Theorists on the Internet start attacking April as being an alien in disguise or as being a dupe being manipulated by the aliens who put the statues in the 64 different cities.  Meanwhile, as time passes, April is getting rich from licensing the video she and Andy took of the statue in Manhattan, which was the First Contact between humans and an alien culture.  In addition to making more videos and documenting everything on the Internet, she writes a best-selling book about her experiences.  She thinks the aliens are friendly. Others don't think anything that is alien can be friendly.  And the Conspiracy Theorists (who call themselves "Defenders") try to kill her.   Here's a quote from that part of the book:
I shouldn’t have been so surprised when things started escalating. I mean, I knew people hated me. It was a real thing. Being recognized by fans is very different from checking out at the corner store and not knowing if the clerk is a Defender thinking about what a dirty traitor you are. I thought that I could only either run away from that or fight it, so I fought it. Fear is an even better fuel than anger. Also, it is even more destructive. Their constant attacks meant I never had to doubt my message. It must be right, because the people who disagreed with me were sooooo awful.
That section in red is very much like how I feel after arguing with the people on the sci.physics.relativity discussion forum who seem to know nothing except mathematics and attack me personally and call me names if I try to discuss science instead of mathematics with them.

Here's a quote I enjoyed about the process of writing a book:
A friend of mine once told me that, no matter how much you proofread, the first time you open the final version of your book, you will find a typo on the very first page you look at. Ugh.
An Absolutely Remarkable Thing was a thoroughly enjoyable book, and I can highly recommend it to anyone who likes science fiction.

June 9, 2019 - Last week, on the sci.physics.relativity discussion forum, I complained that physicists do not seem to be interested in solving a basic science question: "What is light?"  Instead, physicists seem totally content to use a mathematical model for particles when light seems to act like a particle, and they use a mathematical model for waves when light seems to act like waves.  And it doesn't seem to bother them at all that the models are incompatible with one another.  In response to my complaint, a physicist called "Paparios" posted a link to a Wikipedia article as if the article contained some kind of proof of his beliefs.  But he didn't state where in the article to find anything of value.  So, I wrote:
That article describes electromagnetic radiation as being EITHER a wave OR a photon.  It doesn't decide one way or the other.
And Paparios responded:
Why do you think a decision is required?
I replied:
Because SCIENCE is about how things work.  You are saying we do not KNOW how light works, except that it sometimes acts like a particle and it sometimes acts like a wave.  That is not science, it is an admission of IGNORANCE.
Before Paparios could respond, an engineer named Michael Moroney wrote:
Wrong. It is an acknowledgement that light is neither a true wave nor true particles.  It has properties of both, but is not either one.
While stating that he was disagreeing and that I was wrong, he was in reality agreeing that we are ignorant of how light works.  

And then Paparios responded:

First we are not talking about "SCIENCE" but about "Radar Guns". All radars, including radar guns, are electronic devices designed and built by electrical engineers (see https://en.wikipedia.org/wiki/Radar). They have worked quite well and accurate for over 80 years using the good old (and currently still used) classical wave model (Classical Electrodynamics).
Humans, like you or me, are unable to answer questions like "how light works".  The reason is quite simple: we are only capable of processing thoughts, which physicists (like Einstein) use to formulate MODELS which try to approximate the way Nature does whatever it does.

A physical MODEL like Classical Mechanics, Classical Electrodynamics, Special Relativity, General Relativity, Quantum Mechanics, Quantum Electrodynamics, etc. represent achievements of our human intellect, but none of them answer "HOW AND WHY NATURE DOES WHAT IT DOES".
Wow!  That shows how far apart we are in our thinking.  All I am interested in is how Nature does what it does, and Paparios says that "Humans, like you or me, are unable to answer questions like 'how light works'."  I am investigating the science and physics of radar guns, while he evidently doesn't consider radar guns to have anything to do with science.  In addition, he provided a link to a book titled "Radar Design Principles."  Of course, the 724 page book doesn't even contain the word "photon" anywhere.  But it does say this on page 445:
The continuous wave (CW) radar is frequently used for detection and tracking of moving targets. In its simplest form a single sinusoid is transmitted, and the received signals are mixed with the transmitted carrier frequency. The existence of moving targets is determined from the beat note or Doppler frequency shift fd
Hmm.  A "sinusoid" is defined as a single  "sine curve" or "sine wave."  That seems like a photon to me.  There are other places in the book where "sinusoid" is used as if it is a photon.  But, claiming that a "sinusoid" is really a photon will just generate more arguments. 

The discussions on the sci.physics.relativity discussion forum also produced a realization on Thursday and another on Friday that together seemed to solve my biggest problem, which is how to show the mathematicians on that forum that their wave theory of light is ILLOGICAL.

The first realization I had was that radar guns cannot transmit and receive at the same time.  As far as I know, no radio transmitter/receiver can transmit and receive at the same time.  That is why you always hear cops say "Over" when they are done talking and release the transmit button on their microphone.

The second realization I had was that a cluster of waves will return out of order if the waves hit multiple targets.  The waves that hit the closest target will return before waves that hit a more distant target.  How can you measure the speed of a target when the waves return out of order?  A basic radar gun has no way to separate one target from another.  It just displays the speed of the fastest target.  And it does it by computing the Doppler Effect on the oscillations of photons. 

With oscillating photons it doesn't matter if photons from the nearest target return before photons from a more distant target.  The gun simply shows the speed of the fastest moving object within range.  It is up to the operator to know which object or vehicle that was.  If he uses his radar gun on a cluster of vehicles it will be because the officer sees that one vehicle is obviously moving faster than the others.  And he knows by his visual observations which vehicle that is.  His radar gun cannot tell him.  It shows the speed of the fastest vehicle, but not which vehicle that is.

Waves are an entirely different situation.  Here is an illustration I displayed the other day which shows a radar gun emitting waves and receiving waves back.

radar gun and waves calculator 
 
Note that it is implying (or stating) that new waves are being emitted at the same time old waves are returning.  It also implies that the distance between waves is what determines the target's speed.  That is the Doppler Effect for SOUND waves.  Sound waves move at 343 meters per second or 767 miles per hour.  Light photons move at 299,792,458 meters per second or 186,000 miles per second.

If the Doppler Effect also changes the distance between light waves, and that is how radar guns work, then we need an illustration which shows cars of different speeds approaching the police car and radar gun.  Then we can see that the distance between waves coming back will different for each vehicle.  The gun won't, of course, be able to tell which car in the bunch is traveling the fastest, but how will does it prevent the return waves from getting mixed together and showing that one car is traveling at 200 mph? 

It seems to me that describing radar gun using photons instead of waves would make things much much simpler, but if everyone is intent on maintaining their ignorance about how light (and all electromagnetic radiation) works, it seems it will be a long time before we see illustrations of radar guns emitting photons (other than in my papers).

I really really need to get back to work on the overhaul of my paper about Radar Guns and Einstein's Theories.  It explains how photons work in radar guns.  But will anyone care, if they are dedicated to remaining ignorant?  


Comments for Saturday, June 1, 2019, thru Saturday, June 8, 2019:

June 8, 2019 - In yesterday's comment I failed to mention a problem I had with listening to the audio book version of "The President is Missing."  If the title of a book is over 25 characters in length, the part number does not show on the little screen on my ClipSport MP3 player.  AND the parts are somehow scrambled.

"The President is Missing" consisted of 11 MP3 files (11 parts).  The file name for Part 1 is "The President is Missing - Part 01."  The 25 character limit (which includes spaces as characters) just shows "The President is Missing " for all 11 parts, and the parts were actually in this order 6, 2, 3, 4, 5, 1, 7, 8, 9 ... and so on.

Fortunately, the book consisted of 128 chapters, which meant that nearly every MP3 file began with Dennis Quaid stating a chapter number. All I had to do was make a note every time a chapter number was given.  That way I could tell I was in the right MP3 file when I started on a new file.

Last night I started listening to another audio book.  It also has a title that is over 25 characters, but this time it has relatively few chapters.  So, I ended up listening to chapters 1, 2 and part of 4.  I couldn't think of any way to tell if I was in the right chapter except by gut feel that what I'm hearing seems to fit after what I last heard.  My gut feeling was wrong.

This morning, I looked at the MP3 files in my computer and made a note of the first few words on each of the files and to what chapter they belonged.  So, now I can be sure that I'll be listening to them in the correct order (after I go back and listen to chapter 3).    

Checking the Internet to see if others have had the same problem, I found that they have, and the best solution is to edit the file names so that the entire name, including the part number, is less than 25 characters.  I had considered that idea, but I was concerned that trimming the file names might cause some other kind of problem.  I'll do it next time.

Life didn't used to be this complicated.

June 7, 2019 -
Yesterday evening I finished listening to another audio book.  It was The President is Missing by Bill Clinton and James Patterson, a bestseller which was published almost exactly one year ago:

The President is Missing

It took me three evenings to listen to the 13 hour audio book.  I listened to Chapters 1-33 on Tuesday, Chapters 34-76 on Wednesday, and Chapter 77 through Chapter 128 and the Epilogue last night.  The primary narrator was actor Dennis Quaid, supported by several others.

It was an enjoyable book, and well worth the time I spent on it.  It is about a potential cyber attack upon the United States, a threat that is so menacing that if it happens it would throw the United States back into the Dark Ages.  It would shut down our electric power sources, our banks, out hospitals, our businesses and everything that connects to the Internet.  President John Duncan has just three days to stop it from happening.

The only problem I had with the book was the description of the computer virus that the culprits plan to use.  As a former computer programmer, the virus didn't seem to work the way any software works that I am aware of.  But, the book is a work of fiction, so that wasn't a serious problem for me.  Far more interesting to me was a speech given by President Duncan where he describes a political situation that is virtually identical to our current political situation:
     Our democracy cannot survive its current downward drift into tribalism, extremism, and seething resentment. Today it’s “us versus them” in America. Politics is little more than blood sport. As a result, our willingness to believe the worst about everyone outside our own bubble is growing, and our ability to solve problems and seize opportunities is shrinking.
     We have to do better. We have honest differences. We need vigorous debates. Healthy skepticism is good. It saves us from being too naive or too cynical. But it is impossible to preserve democracy when the well of trust runs completely dry.
We have a real President who views anyone who disagrees with him as an enemy who must either change their ways or be destroyed.  That includes other political parties, the  media, the FBI and all foreign governments (except perhaps a few dictatorships).

The book contains a lot of fascinating details about the inner workings of the government.  And since it was co-written by an ex-President, everything has a solid ring of reality about it.  I can definitely recommend the book. 

June 6, 2019
- I'm not sure if anyone is reading this web page anymore.  My web site statistics show I had a low of 176 visitors and a high of 218 visitors in the first 5 days of this month, but they could nearly all be hackers and robots.

It's been difficult for me to find the time to work on the overhaul of my paper about Radar Guns and Einstein's Theories.  I've been doing some research while also arguing on the sci.physics.relativity discussion forum.  Then I get so mentally exhausted that all I can do is sit back on an easy chair and listen to an audio book novel.

Meanwhile, there are a lot of people reading my scientific papers on vixra.org and academia.edu.  So, if I'm losing readers for this web site, I'm gaining readers for my papers.   They probably find out about my papers from the discussion forum and (hopefully) by word of mouth.

There's little that is more frustrating than to read a police radar gun web site that seems to refer to basics radar guns as "analog" guns (as opposed to "digital" guns), and then after spending a hour or more searching the Internet I can find no place that identifies what makes or models of radar guns are  considered to be "analog" guns.  Here's what that sites says about analog guns:

Digital radar guns measure speed based on a 12-inch travel distance of target vehicles, compared to 10 to 15 car lengths used by analog guns.
and
Older, analog radar guns always display the strongest reflected signal. This creates great frustration when you are locked on to an approaching 18-wheeler in a group of oncoming vehicles that includes a speed demon sports car. You see the Mustang going 80 mph, but the radar gun shows 53 mph because it's reading the 18-wheeler.
Right now I am agonizing about contacting my local police department to find out what make and model of hand-held basic radar gun they use.  I just hate the idea of getting some cop angry at me for being a pest.  Sigh.  I just gathered up the nerve to try it, but all I got was answering machines.  I don't think I can get any answers that way.  Sigh.

June 4, 2019
- Although I tried to end the arguments on the sci.physics.relativity discussion forum, I'm still involved in arguments there.  And yesterday one of the arguments became very productive.  Since none of my previous arguments were getting any results, I tried to explain in a different way how radar guns work.  I stated:
The best way to understand how radar guns work is to just follow one single photon to the target and back.
And I proceeded to describe how an oscillating photon leaves the radar gun traveling at c, it hits an approaching car at c+v, which causes the car (traveling at v) to bounce back photons that oscillate at a higher frequency.  This morning I remembered seeing a calculator for that.  I did a search and found one HERE which looks like this:

Beat Frequency and Speed
                                calculator

I plunked in a transmission frequency of 24.125 GHz, which is the standard frequency for K-Band police radar guns.  I then plunked in a speed of 60 mph for the speed of the target vehicle.  When I hit ENTER, the above data appeared.  It shows that the return photon will oscillate at
24125004308.035713 Hz, and when you subtract the transmitted frequency from the return frequency, you get a "beat frequency" of 4308.035713195801 Hz. (They call it a "beat frequency" because you "beat" the two photons together to get the difference in their oscillation frequencies.)  

Unfortunately, the illustration shows waves, not photons.  But illustrating the beat frequency concept using photons is difficult.  I know because I will need to do it in my revised paper about Radar Guns and Einstein's Theories.
 
The point is, however, that a photon oscillates at a very high frequency as it moves, but the mathematicians have no mathematical model for such a thing.  They only have a mathematical model for particles that travel at the speed of light but do not oscillate, and they have a mathematical model for waves that travel at the speed of light but do not oscillate.  And such waves must have a medium and be continuous.  The illustration above shows a continuous flow of waves.  The wave crests move forward like the compressed air of sound waves.  There is no oscillation of the wave itself, the crest just moves from point to point.  The oscillation is in the medium.  With air as a medium, the oscillation is from compressed air to normal air and back to compressed air again.  But light works without any medium.  Light can travel in a vacuum, sound cannot.

I could probably explain the problem better if I had more time, but it just occurred to me.  The real problem is that mathematicians only understand their mathematical formulas and cannot explain things except as math problems.  If I tried to get them to describe in words or images how a light wave moves from a radar gun to a target and back, I doubt they could do it.  How can you have a moving crest of a wave without any medium?  You can't.  That may explain why there are still scientists arguing in scientific papers that the aether or ether must exist.  If you do not have a medium you must have a continuous ray, like a rope running from the source to the target, and the wave moves along the rope.  The rope, of course, is then the medium. 

It all just brings me back to what Richard Feynman said,
I want to emphasize that light comes in this form - particles. It is very important to know that light behaves like particles, especially for those of you who have gone to school, where you were probably told something about light behaving like waves.  I'm telling you the way it does behave - like particles.  
Correct.  You cannot have waves without a medium.  And light can travel in a vacuum where there is no medium.    

Somehow, I need to incorporate all this into my radar gun paper.

June 3, 2019
- Two days ago, I wondered what the current best selling fiction books were.  When I researched it, I found that #2 on the list was a James Patterson novel The 18th Abduction.  It was the one on the list that looked most interesting, and it made me wonder if my local library had it in audio book form.  They did, but there was a waiting list.  More significantly, I learned that it was the 18th book in a series of novels about "The Women's Murder Club."  So, I wouldn't want to read it anyway.  I'd want to start with the first book in the series.  That turned out to be "1st to Die."

1st to Die

And it turned out that my library had 1st to Die in audio book form and it was available for immediate borrowing.  So, I borrowed it, and yesterday afternoon and evening I listened to it - 6 hours and 9 minutes.

At first the book didn't seem particularly interesting.  It was about the formation of the "Women's Murder Club" (Lindsay Boxer is a homicide inspector in the San Francisco Police Department, Claire Washburn is a medical examiner, Jill Bernhardt is an assistant D.A., and Cindy Thomas just started working the crime desk of the San Francisco Chronicle).  They come together as they try to solve the grizzly murder of a newly-wed couple.  Early on it seemed clear to me who the killer was, so it was just a matter of time before the club members figured it out.  But then things took a weird turn and the story became a little far-fetched. 

While I enjoyed the  book, it wasn't really my cup of tea.  The murders were too graphic and grizzly.  I prefer more humor in my murder mystery novels.  So, I won't be reading any more from the series.

But it got my mind off of radar guns for awhile.         


June 2, 2019
- I think the arguments about my Radar Guns and Einstein's Theories paper on the sci.physics.relativity forum have come to an end.  Some of the discussion was very worthwhile.  For one thing, it made me realize exactly what "problem" my paper should address.  That problem was also mentioned in the abstract for the paper by Jeremy Fiennes I wrote about yesterday:
The 'constant speed of light' postulate predicts that two inertial observers – for instance twins in spaceships free-floating in outer space – will each see the other's clock running slower than his own.
As far as I know, Einstein never said anything like that.  It is the mathematicians' misinterpretation of Einstein's theories.  It is also #1 on my list of the ten dumbest beliefs in physics

In the sci.physics.relativity discussion, relative motion came up in an argument from "RichD" on May 25:
Ed, imagine you're in a space ship, in outer space. 
Looking through the front window, you spot an
approaching asteroid.  You aim the radar gun at it:

I)  You are stationary, the asteroid is moving
    toward you at 90 mph.  What does the device read? 
    Will a patrol cop cite you for speeding?

II) The asteroid is stationary, you are moving
   forward at 90 mph.  What does the device read? 
   Will a patrol cop cite you for speeding?
In my response I wrote:
Those situations are FANTASY situations that mathematicians use to argue that all motion is relative.  

Einstein said that the speed of light is always emitted at c and cannot
exceed c.

Your FANTASY situations have my spaceship and the asteroid in empty space with no frames of reference to determine who is moving. In reality, of course, both are moving.  The only question is: who is moving fastest?  That is determined by finding out who is moving closer to the fixed speed of light.  

According to my paper, I should be able to point my radar gun at the wall inside my space ship to determine my speed relative to the speed of light. The gun subtracts my speed v from the speed of light c to show my speed.

Knowing my speed, I can then point the gun at the asteroid and get its
speed relative to the speed of light.  If it is moving at 90 mph, the
gun will read 90 mph, but won't say whether it is positive or negative.

If the asteroid is stationary relative to me, then we are both moving in
the same direction.  If the asteroid is moving relative to me, then the
asteroid is moving at 90 mph in a different direction than I am.

If the asteroid is moving at 200 mph relative to the speed of light,
the gun will show that.  That has no effect on how fast I am moving.

I should probably have spent some time thinking about what I just wrote, but I think it is correct.
A basic police radar gun measures a target's speed relative to the local speed of light.  (Local c basically means c at the local altitude, since the length of a second varies with altitude.)  A photon of a specific wavelength is emitted from the gun at local c, it encounters the target at c+v, the target sends back a new photon which has a slightly shorter wavelength representing the added kinetic energy from the moving target.  The new photon travels at local  c back to the gun.  The gun compares the wavelength of the photon it emitted to the wavelength of the photon it received back and computes the speed of the target to be vIn addition, my research into radar guns now indicates that some models of a basic radar gun can determine the direction the target is moving without losing its other "basic radar" features.

In space, basic radar guns would work the same way as they do on a highway, only "local c" does not involve any altitude because the experiment takes place in "empty space".  There aren't even any stars to judge your own direction of movement by.  

Space ships with radar guns passing
                              one another

So, as seen in the cartoon above, the radar gun on the spaceship on the right emits photons which travel at c toward the spaceship on the left.  The fact that the radar gun may be moving doesn't change c ("light is always propagated in empty space with a definite velocity c which is independent of the state of motion of the emitting body"). 

Atoms in the outer surface of the spaceship on the left absorb the oncoming photons and emit new photons back toward the gun.  The new photons travel at c, but they will have a shorter or longer wavelength depending upon who is moving toward whom.  The gun on the spaceship on the right will compute the difference in wavelengths to find the speed of the target and the direction it is moving.  If it shows the spaceship on the left is approaching at 200 mph, the gun can then be pointed at a wall inside the right spaceship and the speed of the wall relative to the speed of light can be computed.  If the wall turns out to be approaching at 190 mph, that means the left space ship is traveling at 200 mph toward the right and the spaceship on the right is traveling backwards at 190 mph in the same direction (in space, if your engines are turned off, you can be easily moving backwards if you do not orient yourself to the stars).  In other words, the spaceship on the left is approaching the spaceship on the right with a "closing speed" of 10 mph.

Of course, that means the radar gun on the spaceship on the left will get a reading 190 mph off of the spaceship on the right, and the gun will indicate the target is moving away from the spaceship on the left.  But, checking the speed of the forward wall on the left spaceship, that wall will have a speed of 200 mph away from the gun. So, from the point of view of the spaceship on the left, it is approaching the spaceship on the right at a "closing speed" of 10 mph.

But how do I prove any of this?  All I need to do is find a basic radar gun that works the way such a gun was described to me by a police officer about a year ago.  I cannot ask my local police department any more questions, since they seem to be very concerned that I am going to cause some kind of political problem for them.  I'm going to continue to try contacting the manufacturers of radar guns while at the same time trying to find manuals and other materials on-line that might help.

While hunting, I'm going to overhaul my paper about Radar Guns and Einstein's Theories to describe things the way I understand them, beginning with the "problem" of whether or not all motion is relative.  If I can't find an inexpensive way to do a radar gun experiment for myself, I may just recommend that the readers of the paper do so.  If I am wrong, they can prove me wrong (as long as they use the correct type of radar gun).  If I am right, they may be the first to discover solid evidence that all motion is not relative and the textbooks which say all motion is relative need to be thrown in the trash.

June 1, 2019
- This morning, academia.edu sent me a link to a new 82-page article about "Einstein's Terrible Twins" by Jeremy Fiennes.  Browsing through the article, I saw it has a weird version of the second paragraph from Einstein's 1905 Special Theory of Relativity paper
"The unsuccessful attempts to discover any motion of the Earth relative to the 'light medium' suggest that the phenomena of electrodynamics, as well as those of mechanics, possess no properties corresponding to an absolute rest a9. But rather that the same laws of electrodynamics are valid for all frames of reference for which the equations of mechanics hold good b10. We will raise this conjecture to the status of a 'relativity postulate'. And will introduce another, only apparently irreconcilable with the former, namely that light is always propagated in empty space with a definite velocity c, independent of the state of motion of the emitting body. The introduction of a 'luminiferous aether' will thus prove superfluous."11
That is clearly not the translation I always use, but it says basically the same thing.  However, then things really get weird when the article goes on to say,
He later amplified the last bit to:

"Light in vacuo has a definite velocity of propagation, independent of the state of motion of the source or of the observer."12 (italics ours)
When did Einstein say that?!  I looked through the references section for reference #12, which turns out to be a letter Einstein sent to the London Times in 1919.     The letter says this on page 2:
The second principle, on which the special theory of relativity rests, is the "principle of the constant velocity of light in vacuo." This principle asserts that light in vacuo always has a definite velocity of propagation (independent of the state of motion of the observer or of the source of the light).
The letter is in English, but Einstein couldn't write in English in 1919.  Could the section in red have been added by the translator?  That seems unlikely.  What seems far more likely is that Einstein was saying that light always propagates through space at c, and the speed of the observer or emitter doesn't change that.  In other words, while an observer moving toward the source of the light at speed v might encounter the light at c+v, the light isn't actually moving at c+v, it is moving at c.  The speed of the observer doesn't change the speed of light.

But that makes it another opinion versus opinion argument.  What did Einstein mean when he wrote the above?  It is clearly different from what he wrote in his 1905 paper, but countless mathematicians argue that what he wrote in his 1905 paper isn't what he actually meant to write.

Looking back to the abstract for Jeremy Fiennes' paper, I found it says this:
Einstein's Special Relativity is based on two fundamental assumptions, the so-called 'Einstein postulates'. The 'constant speed of light' postulate predicts that two inertial observers – for instance twins in spaceships free-floating in outer space – will each see the other's clock running slower than his own. The 'relativity' postulate says that both perceptions are equally valid, effectively correct. The logical incoherence of this makes a nonsense of the postulates, and by extension of Special Relativity itself.
So, Fiennes is evidently debunking Einstein's theories.  I just do not have the time to figure out exactly what Feinnes is arguing.  He appears to be arguing against the mathematicians' interpretations of Einstein's theories while claiming those interpretations are actually Einstein's words.  I'm fairly certain that Einstein never said anything like this:
The 'constant speed of light' postulate predicts that two inertial observers – for instance twins in spaceships free-floating in outer space – will each see the other's clock running slower than his own.
That is pure mathematician crap.

I think my radar gun experiment can end the debate once and for all time, but how can I confirm that without spending a lot of money?


Comments for Sunday, May 26, 2019, thru Friday, May 31, 2019:

May 30, 2019 - The two PBS shows I mentioned in my May 26 comment aired last night.  I recorded both of them and watched them while recording. The NOVA episode turned out to be a repeat from 2015, but it was still very interesting.  I think it was the first time I'd seen what Professor Sean Carroll looks like.  As soon as he started talking I perked up, since I've listened to hours and hours of his podcasts.  His voice was immediately recognizable.  There were other people on the show whose names were also very recognizable, but for different reasons.  Some are professors who I cite in my papers as being in error.

The second PBS show, which featured Professor Brian Greene, was more annoying than interesting.  He did one distortion of Einstein's theory that I'd like to write more about, but I'd have to transcribe exactly what he said and relate that to Section X of my paper "Simplifying Einstein's Thought Experiments."  I don't have the time to do that right now, and it seems pointless if there is no way I can provide a link to the show, so that the reader can watch it for himself.

Also, toward the end of the show Professor Greene talked about how all of Einstein's later papers (papers written after 1919 or so) contained errors.  While that may be true, I do not recall anyone ever mentioning that before.  If I had the time, I'd research those papers to find out what Einstein was trying to argue and what the errors were.

Right now I'm trying to figure out how to either perform the experiment described in Section IV of my paper about Radar Guns and Einstein's Theories or find some way to persuade others to perform the experiment.

I've found a web site where many different police radar guns are displayed.  They range in price from $395 to $1,495.  And I also found a web site where police radar guns are analyzed and categorized.  The site seems to make it clear I need to find information about guns that do NOT have a "dual antenna" and do NOT have a "moving mode."  What the first site also tells me is that none of these guns look like the back of a Bushnell Speedster sports radar gun.  None has just one button on the back.  So, the hand-held radar gun used in this screen-shot is most likely an old model Bushnell Speedster.

hand-held radar gun used from
                                moving vehicle
The radar gun above has a larger button than the Bushnell gun in the image below, plus the image below shows a very clear vertical gap between the left and right sides that does not show up on the above image no matter how much I enlarge it or clarify it.
  

Bushnell Speedster

Why police would have a Bushnell Speedster in their car is a mystery.  It cannot be used in court.  They used it in the video to show the speed of the police car, so it was likely pointed at the highway instead of the white car.  Groan.  I really really need to figure how how perform or have someone else perform my radar gun experiment.

May 28, 2019
- When I turned on my computer this morning, my inbox contained an email from a Japanese author who wanted permission to use a couple photographs I took in Misawa, Japan, in 1964 in a book he is translating from English to Japanese.  The book is titled "62 Years on the Hill."  I'd never heard of the book before, but it looks interesting.  Too bad my library doesn't have a copy. 

I gave the guy the permission he asked for.  He evidently found the pictures on my blog page about "Google Street View Time Travel."

Yesterday, I got bogged down on digging through web pages looking for details about specific makes and models of radar guns.  So, to clear my mind, I turned off my computer, sat down in a chair in the living room and listened to the audio book version of Arthur C. Clarke's sci-fi novel "3001: The Final Odyssey."

3001: The Final Odyssey

The story begins with the finding of Frank Poole's body floating in space in the year 3001.  Frank Poole is the astronaut who was killed by HAL the computer in 2001: A Space Odyssey (the book and movie).  His fellow astronaut, Dave Bowman, tried to recover Poole's body but then got locked out of the spaceship USSS Discovery by HAL. So, Poole's body was left to float away while Bowman tried to get back inside the spaceship.

Poole was basically frozen immediately after death, so in the year 3001 it is no trouble at all to bring him back to life.  The remainder of the book is about Poole working to figure out what the black monoliths are that they found on Earth and in orbit around Jupiter in 2001.  Everything gets satisfactorily resolved by the end of the book.  I enjoyed listening to it.  The book is filled with a lot of valid science, and it goes into some detail about how different 2001 was from 1001:
 'Almost the whole of the technology we take for granted was invented near the very end of our Millennium - the steam engine, electricity, telephones, radio, television, cinema, aviation, electronics. And, during a single lifetime, nuclear energy and space travel - what would the greatest minds of the past have made of these? How long could an Archimedes or a Leonardo have retained his sanity, if suddenly dumped into our world?'
But the difference between 2001 and 3001 is (according to the book) not that great.  In 3001 the earth has a man-made ring around it at the location where Geo-stationary satellites are now located, and four 22,300 mile high elevators take people from the earth to the man-made ring called "Star City."  But those are things we can already imagine.  No space ships leave from Earth or land on Earth in 3001.  Everything is hauled to "Star City" by elevator and you can go to the moon and other planets by space ship from there.      
 
The unabridged audio book is just 6 hours and 49 minutes long.  I listened to 6 hours and 30 minutes worth before going to bed.  I listened to the last 15 minutes or so this morning.  That would seem crazy - if the end of the novel was in  the last 15 minutes.  However, the novel actually ends at about the 6 hour and 15 minute mark.  Then there is a brief Epilogue followed by a lengthy section of Acknowledgements, some of which are very interesting.  Clarke writes about how things seem to move a lot slower today then we imagined they would back in the 1960s and 70s.
Today, of course, it seems ludicrous that we could have imagined giant space-stations, orbiting Hilton Hotels, and expeditions to Jupiter as early as 2001. It is now difficult to realize that back in the 1960s there were serious plans for permanent Moon bases and Mars landings - by 1990!
The problem may be mostly politics and money.  Those are still problems. 

May 27, 2019
- Hmm.  I've been hunting for information about how basic police radar guns work.  It is like looking for a needle in a haystack.  It seems that most operating manuals for police radar guns require a subscription to something before you can access them.  However, I did find the User Manual for the GHD & Scout radar guns made by Decatur Electronics.  It says this in the Frequently Asked Questions (FAQ) section that begins on page 33:
Q. Will my radar work while my vehicle is moving?

A. No, the GHD and SCOUT radar guns are a stationary only models, so
your vehicle should be parked. You need to hold the radar steady while operating it.
So, the gun doesn't "work" while moving.  One can assume that means that the gun will give no reading, which means it is reading a speed of zero.  However, things become less clear when you compare that answer to the answer for the Bushnell sports radar gun:
Question: If in a moving vehicle, can the Bushnell Speedster pick up the speed of another moving object?

AnswerNo. However, if you would like to know the speed of the vehicle you are in, point the Speedster at a stationary object, such as the ground.
So, you can also interpret the Scout answer as stating the same thing as the Bushnell without the added info about "another moving object" and pointing the gun at the ground.  The Scout answer just isn't specific enough to be useful.  I'll keep hunting.  

May 26, 2019
- Shortly after posting my revised paper about "Radar Guns and Einstein's Theories" to vixra.org and academia.edu, I noticed that my local PBS station has two new programs about Einstein's theories airing on Wednesday evening.
  The first one, airing at 8 p.m. my time, is a NOVA episode titled "Inside Einstein's mind."  The second one, airing at 9 p.m., is hosted by Prof. Brian Greene and is titled "Light Falls."  I'm looking forward to watching both of them, even though Prof. Greene is the teacher who first made me aware that many schools are teaching total nonsense about Einstein's theories.  About four years ago, I took a course Prof. Greene taught titled Space, Time & Einstein on his WorldScienceU.com web site.  That is what got me interested in the conflicts between Einstein's theories and the interpretations of his theories argued by mathematicians and some college professors.

Now, after four years of extra-curricular studying and research into that subject, I think I've finally found a way to determine what is correct and what is incorrect.  It is the same way that Richard Feynman recommended:

Feynman quote about experiments

The problem is: I do not have the funds to do the experiment in a way that will produce undeniable results.  I would not only need to obtain the right kind of radar gun, I would also need to have a way to perform the experiments, which means I would need to have a driver, a photographer, good video recording equipment, probably some lighting equipment, and both a car and some kind of box truck.  All I would need to do when all those items are obtained is to point the radar gun and pull the trigger.

The box truck would be needed to show that someone in the back of the truck (inside the "box") could determine the speed of the truck by simply pointing the gun at the front wall (or back wall).  And it might also be worthwhile to point the gun at the side wall to see how those results would be different.

Of course, it could all be done without me.  All I need is to have the results made publicly available.  I have some ideas about how I might be able to do that, but trying them will have to wait until after Memorial Day.

Meanwhile, yesterday I finished listening to the audio version of Alan Alda's 2017 book "If I Understood You, Would I Have This Look on My Face?: My Adventures in the Art and Science of Relating and Communicating."      

Alan Alda's If I understood you ...

The book is only 6 hours and 15 minutes long.  I'm not sure what put it at the top of my listening queue, but I'm glad it happened.  It is a very interesting book, and much to my surprise, it also contains a lot about science - or more accurately, it has a lot about communicating scientific information to non-scientists.  Alan Alda was the host of a PBS TV series "Scientific American Frontiers" which aired for 15 years, from 1990 until 2005.  The book describes his first efforts to interview scientists and how clear it was that they weren't communicating.  So, he dug into his show business experiences with "improv," where a situation is created and the actors have to react to and discuss the situation, and he changed his tactics:
     After a while, I saw that I was having trouble talking with them whenever I thought I knew more than I really did about their work. I was boxing in the scientists with questions that were based on false assumptions. I took a bold step and stopped reading the scientists’ research papers before I met with them. I would come in armed only with curiosity and my own natural ignorance. I was learning the value of bringing my ignorance to the surface. The scientists could see exactly how much I already understood, and they could start there.
     Ignorance was my ally as long as it was backed up by curiosity. Ignorance without curiosity is not so good, but with curiosity it was the clear water through which I could see the coins at the bottom of the fountain.
     It led to a dynamic relationship. The scientists were glad to see that I really wanted to understand their work, and, just as it does in improv games, it had an effect on them and they themselves became more responsive. They could relate to me as a person.
That led to Alda setting up an organization to help communicate scientific ideas:
     For the last twenty years, I’ve been trying to understand why communicating seems so hard—especially when we’re trying to communicate something weighty and complicated. I started with how scientists explain their work to the public: I helped found the Center for Communicating Science at Stony Brook University in New York, and we’ve spread what we learned to universities and medical schools across the country and overseas.
     But as we helped scientists be clear to the rest of us, I realized we were teaching something so fundamental to communication that it affects not just how scientists communicate, but the way all of us relate to one another.
and
In 2014, he [Alan Alda] was named a fellow of the American Physical Society for his work in helping scientists improve their communication skills. He is a member of the board of the World Science Festival and is a Visiting Professor at Stony Brook University’s Alan Alda Center for Communicating Science.
While the book has a lot about inter-personal communications that does not involve scientific subjects, and it does get a bit repetitious toward the end, it is filled with fascinating information and good advice.  On page 185 it has some mind-blowing information:
     Ike Antkare is the name of a fake scientist created by the French researcher Cyril Labbé, who wanted to see if a mere golem like Antkare could make a name for himself on the Internet among real scientists.
     He certainly could. Labbé used a computer program called SCIgen (created by graduate students at MIT) to generate dozens of fake papers using just a few keystrokes. In a short time, the fictional Ike Antkare had so many citations, he became, according to Labbé, “one of the great stars in the scientific firmament.” This happened mainly because the fake papers were picked up by Google Scholar, which is used by other organizations to rate authors on how many times they’ve been cited. After Labbé was finished gaming the system, Google Scholar ranked Ike Antkare number twenty-one on the list of most cited authors. Ike didn’t have as many citations as Sigmund Freud, but he had more than Albert Einstein.
     The golem ruled.
     Labbé went further. He developed a program that could detect whether a paper had been created using SCIgen. He found 120 papers that had been accepted and published by peer-reviewed journals—all created by SCIgen and all fakes.
It is a very good book and I can highly recommend it.  I recall a passage about how scientists bumble their way through scientific research projects.  I won't quote it, but when I awoke this morning, I suddenly realized I have been going about things the wrong way in researching and writing my paper about Radar Guns and Einstein's Theories.  I began by thinking there were just two types of radar guns, those meant to be used from stationary locations and those meant to be used from moving locations.  Then I learned about the Bushnell Speedster 101911, which is meant to be used from stationary locations but works different from a basic police radar gun.  Yet, for some reason I never thought to ask any police officer what make and model of basic radar gun they use.  My paper doesn't name any specific make and model of basic police radar gun.  Clearly that needs to be done, and I need to include that information in the next version of the paper.

And, I probably need to think about the communications advice provided in Alan Alda's book about how to engage the reader.  I probably need to begin the paper with a description of the problem, not with babble about how all radar guns do not work the same way.  Sigh.  It is what happens when you do not pause in your work to take a step back to see how others will see it.  Alda describes how people like stories, so you need to explain complicated subjects as if telling a story.  Live and learn.  
 

Comments for Sunday, May 19, 2019, thru Saturday, May 25, 2019:

May 24, 2019 - When I turned on my computer this morning, I had one new email.  It was from vixra.org advising me that version 2 of my paper "Radar Guns and Einstein's Theories" was now available on their web site at this link: http://vixra.org/pdf/1806.0027v2.pdf
  
I also awoke this morning wondering if I shouldn't have stated Einstein's Second Postulate somewhere in the paper, instead of just telling people to read more about it in my paper on the subject:  An Analysis of Einstein’s Second Postulate to his Theory of Special Relativity.

After making the change, quoting Einstein's Second Postulate on page 3 of the paper, I decided the paper is better that way.  However, I'm going to wait until next week to make the change on vixra.org.  I may think of other improvements by then.  Meanwhile, I submitted the improved paper to academia.edu.  It is here:
https://www.academia.edu/39249646/Radar_Guns_and_Einsteins_Theories 

Next I had to decide when to start arguing about it on the sci.physics.relativity Usenet discussion group.  I decided to do it right away with the current vixra.org version.  Here's the link: https://groups.google.com/forum/#!topic/sci.physics.relativity/48_lDrdzTFs

May 23, 2019
- Hopefully I won't regret it, but I just submitted the revised version of my paper "Radar Guns and Einstein's Theories" to vixra.org.  I'm hoping they will put it on their web site tomorrow, instead of waiting until after the weekend and possibly until after the Memorial Day holiday.

I made some major changes this morning, and I did some major changes every day for the past week, yet the basic idea behind the paper is unchanged.  I'm hoping I greatly simplified things while at the same time adding in information about how "basic" radar guns differ from "complex" radar guns.

The more I think about the paper, the more important it seems.  It shows how to prove beyond any doubt that countless mathematicians are wrong in many of their beliefs about the speed of light and about light waves versus photons.  I know I'm sticking my neck out because I haven't actually purchased a basic radar gun and performed the experiments to verify what I wrote in the paper, but I'm totally open to being proved wrong if I am wrong.  I want to know if I am wrong, and if I am wrong, I want to know what it is that I misunderstood - as long as it isn't just a claim that I don't understand the mathematics.  I need to know if a "basic" police radar gun works as described in my paper, or not.    

I could hunt around for the right kind of radar gun, but even if I found one, bought it, and it works as I believe it works, no mathematician is going to believe me.  I've got some ideas on how to get help to produce a video demonstrating what is stated in the paper, but I can't begin work on that until after the holiday weekend.  Besides, I need the time to think about what I should try to do.  

May 22, 2019
- I'm close to producing a "first draft" of the revised version of my paper "Radar Guns and Einstein's Theories."  I'm tempted to upload it to vixra.org as soon as I think its done, but I'm also wondering if I shouldn't hold on to it for a few more days to see if I can think of additional improvements, and to see if I can find more typos and errors.  It already looks like the new version will be a thousand percent improvement over the old version.

Meanwhile, yesterday I finished listening to another science fiction audio book.  The book was "Time's Eye" by Arthur C. Clarke.

Time's Eye by Arthur C. Clarke

The audio book consists of 10 MP3 files and is 11 hours and 38 minutes long.  I probably should have done some research into the book before I started it, since it is basically just the first part of a trilogy.  You do not learn until near the end that some entities called the "Firstborn" (which is also the title of the third and final book in the series) are apparently performing experiments with Earth.  Here is what happens at the very beginning of the book (quoted from Amazon's page):
In an instant, Earth is carved up and reassembled like a huge jigsaw puzzle. Suddenly the planet and every living thing on it no longer exist in a single timeline. Instead, the world becomes a patchwork of eras, from prehistory to 2037, each with its own indigenous inhabitants.
So, suddenly a new earth is created with Genghis Khan in the same timeline as Alexander the Great, some ape-like humans from pre-history, Russian and American astronauts and others from other eras.  And they have to figure out what is going on (when they aren't killing one another).

I encountered a glitch of some kind while listening to the book.  I was at about the 32 minute mark in part 7 when suddenly it switched to the beginning of part 10.  It took me awhile to realized something had happened, but it seemed like Fate had intervened to save me some time (or maybe I had somehow mentally caused the MP3 player to skip ahead).  I finished listening to part 10 and then went back to sample parts 8 and 9 to see if they had anything I wanted to hear.  They didn't.  So, I'm am finished with the book, whether or not I actually fully finished reading it.  What I learned from the book is that I should move the other two books in the series to the bottom of my reading list, or remove them altogether.  Listening to "Time's Eye" was not a waste of time, but the time could have been better spent.    


May 21, 2019
- Yesterday, I started revising my paper on "Radar Guns and Einstein's Theories" to explain that, even though the physics behind all radar guns are the same, different radar guns have different design features which can and do produce different results.  That part wasn't difficult to explain, but then I found that the paper also describes how photons work, and it has illustrations that show photons as short, wavy lines.  I tried to come up with a different way to show a spray of photons being emitted by a radar gun, but a spray of coin-shaped disks requires too much explaining.  So, I'm not sure how to solve that problem.

Meanwhile, as I drove around town yesterday doing errands, I finished listening to CD #12 in the 12-CD set for the audio book version of "The Shallows: What the Internet is doing to our Brains" by Nicholas Carr.

The Shallows

Wow!  What a terrific and fascinating book!  Unfortunately, since I was listening to the audio book version, I had no capability to underline interesting passages and save them.  The book is about how the Internet is changing the way our brains work, but it begins by explaining how other things in the past changed the way our brains work, like writing and printing, then radio and TV.  Here's one passage from a print version of the book that I found interesting:
It’s hard for us to imagine today, but no spaces separated the words in early writing. In the books inked by scribes, words ran together without any break across every line on every page, in what’s now referred to as scriptura continua. The lack of word separation reflected language’s origins in speech. When we talk, we don’t insert pauses between each word—long stretches of syllables flow unbroken from our lips. It would never have crossed the minds of the first writers to put blank spaces between words. They were simply transcribing speech, writing what their ears told them to write.
So, when they read something in the first few centuries AD, they had to decipher it to figure out where words began and ended.  "Reading was like working out a puzzle," the book says.  And that made our brains work different from how a brain works when spaces are there and the puzzle comes to us solved.  They didn't start putting spaces between word until the Middle Ages, probably around 500 to 800 AD.  Then, of course, came printing, which made books available to everyone and a person's thoughts could be shared by millions.  And when audio recordings were invented, you could listen to the actually person share his thoughts - even if he was no longer alive.

Then came computers. 
Text messaging now represents one of the most common uses of computers, particularly for the young. By the beginning of 2009, the average American cell phone user was sending or receiving nearly 400 texts a month, more than a fourfold increase from 2006. The average American teen was sending or receiving a mind-boggling 2,272 texts a month. Worldwide, well over two trillion text messages zip between mobile phones every year, far outstripping the number of voice calls.   
At about that point, I stopped being "average."  I never send text messages via my phone.  Nor do I receive any.  I carry my cell phone only for emergencies.

And Nicholas Carr's concerns about the Internet changing our brains doesn't seem to apply to me, although it is still of concern.  While I use the Internet for several hours every day, I clearly do not use the Internet the way most people do.  And the book made me wonder about differences in other people that I'm noticing.  Specifically, it made me wonder if it explains why I rarely find a new movie that I like these days.  Up until early last year, I was renting 8 to 10 movies a month from RedBox.  This year it is more like 1 or 2, and I haven't rented any movies in the past 30 days.  Today's movies seem like a string of YouTube videos, with some kind of action every few minutes and endless special effects.  There is no story to grab my attention, but there are endless "visuals" to grab other people's attention. When I was in Virginia I had an opportunity to watch Netflix, and it had an endless collection of movies I'd never heard of.  Checking them out, they were mostly from other countries.  But they followed the same pattern: fight action every few minutes and lots of special effects.

One movie I watched was only 11 minutes long!  It was like watching a YouTube video of some people performing a mix of stunts and drama scenes. And the Academy Awards had Netflix's
The Ballad of Buster Scruggs” among the contenders.  It's evidently a collage of short "stories."  I watched the first part, but my family had seen the rest of the movie and didn't want to re-watch the rest of it.  After seeing the first part, neither did I.  A news story I just found says Netflix is starting to make short TV shows, each just 12 to 15 minutes long. 

Netflix isn't the Internet, but I see a pattern.  As a result of how people use the Internet, it seems most people now have shorter attention spans (yet they can carry on dozens of text conversations simultaneously with dozens of different people).  Netflix is just giving their customers what they want.

We're doomed!  I tell you, we're doomed!  Next year's Academy Award may go to a movie that just shows cats running around on a kitchen floor or some guy stumbling over a curb!  


May 20, 2019
- I awoke this morning realizing that I need to revise my paper "Radar Guns and Einstein's Theories" to explain that different types of radar guns have different features which can produce different results.  Based upon what I learned yesterday, I need to distinguish between a "basic radar gun" and "complex radar guns."   And the difference is not explained by the illustration I used in my April 24 comment.

Displays on simple and
                                      complex radar guns
The "simple radar gun" shown above is a Bushnell radar gun, which is definitely not a basic radar gun.  It converts analog information to digital, and it uses computer chip programs to manipulate results to "filter out bad information" and to provide "valid accurate information."  In the process of doing that, it evidently eliminates "errors" that might result from the gun not being held motionless.  And that means it does just the opposite of what a "basic" radar gun does when it measures the speed of the ground from a moving vehicle.

Interestingly, when I looked at my paper on Radar Guns and Einstein's Theories on vixra.org this morning, I noticed someone called "Mikko" had posted this message 10 days ago:
On the web page http://vixra.org/abs/1806.0027 the author tell's how he is now trying to learn what he in was in this article trying to teach. See, e.g., the comment with the date "May 6, 2019".
That comment requires some deciphering.  First, the link is to the article while the web page he's talking about is my web site ed-lake.com.  My May 6 comment was about how I need to learn more about how tuning forks work.

In another comment Mikko wrote 10 months ago, he said,

The article quotes "A radar gun in a car traveling down the highway at 60 MPH will measure a tree to have a speed of 60 MPH." and claims that "that answer is in disagreement with fundamental physics". However, the quoted statement is true in the sense that anyone who has a radar gun (the abstract says they are inexpensive) can try and see that that indeed is what happens. If "fundamental physics" says otherwise then "fundamental physics" is wrong. 
So, Mikko probably has a radar gun like the Bushnell and has done the experiment, getting different results from what my paper says.  I wish he had sent me an email instead of posting a comment on vixra.org.  Then maybe I would have realized the difference between a "basic radar gun" and "complex radar guns" a lot sooner.

Meanwhile, yesterday I finished listening to the audio book version of Arthur C. Clarke's sci-fi novel "2061: Odyssey Three."

2061: Odyssey Three

It was a very enjoyable 7 hours and 1 minute, even though the book is a bit dated.  The book was first published in December 1987, about three years before the creation of the Internet.  So communications on earth and in orbit around the earth do not involve the Internet.  In a dialog about 3/4ths of the way through the book someone says,
I hope you can fax this book to us in your next transmission - we're all anxious to read it.
Remember when faxing was high-tech? 

I'm not going to describe all the things that happen in the book, but 2061 is the year when Halley's comet is due back.  A big part of the book involves landing on the comet and exploring its surface and interior.  Another big part of the book is about events following what happened in 2001: A Space Odyssey and 2010: Odyssey Two.  Among other things, Jupiter has been turned into a second (but much smaller) sun, and the moons that orbit Jupiter now have their own sun to warm their surfaces.  I could go on and on, but I'll just conclude by saying that I enjoyed the book, and as soon as the audio book version of 3001: The Final Odyssey becomes available from my local library, I'll be borrowing it.  Right now I'm listening to Time's Eye by Arthur C. Clarke and Stephen Baxter.  It is the first book in the A Time Odyssey series.   


May 19, 2019
- I think I've watched at least a hundred different YouTube videos with demonstrations of how radar guns work.  I couldn't find any solid answers to my questions in any of the videos.  All I found was some new questions.  I had gotten to the point where I was actually considering buying a Bushnell Speedster 101911 radar gun so that I can find the answers myself.  I can pick one up at my local Walmart for $79.56 plus tax.
Bushnell speedster radar gun
The basic question I had was: What will the radar gun measure if I point it at a highway sign while I'm in my car going at 60 mph?   According to Einstein and a police officer I talked with a couple years ago, the gun will show "no reading," which means the highway sign's speed is zero (technically, less than 10 mph). 

Would buying the Bushnell radar gun allow me to resolve the argument I had over the picture below (see my April 22 comment)?:

radar gun controversy

Is the hand-held gun measuring the speed of the white car, as I claim (in agreement with Einstein), or is it measuring the "relative speed" of the highway, as the mathematicians argue? 

While doing research yesterday, a third possibility came up: It could be measuring the speed of the patrol car's windshield.  According to one source:
Radar and laser guns don’t work well through tinted glass, which is why officers typically use them outside the vehicle or with the windows down.
That poses more questions:  What does "don't work well" mean?  What speed does the radar gun show when it "don't work well"?  (Supposedly, lidar (laser) guns do not work at all when there is a window in the way.)

Researching further, I learned more about how "mechanical interference" can be a problem with radar guns.  One source says,
even the police car’s own heater or air conditioner fan can cause enough mechanical interference to cause a radar gun to register a stationary rock at 70 mph or a palm tree at 28 mph.
And another source says,
Mechanical Interference is any moving object, other than the target vehicle, that can produce a false or incorrect radar reading. The most common sources are vibrating or rotating signs near the roadway; fan blades moving inside or outside the patrol car (air conditioner, heater, defroster or engine fan); another moving vehicle that reflects radar waves better than the target vehicle; and multiple targets in the main radar beam causing multiple reflections of nearly equal strength and making the display read, high, low, or completely blank. 
How do fan blades interfere with a radar gun?  I found a couple videos where people demonstrate how an air-conditioner fan will interfere with a radar gun.  Click HERE for one of them.  

It seems to me that a rotating fan cannot interfere with a radar gun unless the gun is actually pointed at the fan and the fan is "visible" to the gun (i.e., there is nothing in the way).  Even then the gun would have to be pointed at the fan from one side.  If a radar gun points at the center of a rotating fan, nothing is moving toward the gun.  So, what is the radar gun detecting?  No one seems to know.  In the videos they just guess that it is some kind of radio signal being generated by the fan.  Or the sound of the fan somehow does something. 

To me, the obvious answer is that the fan is blowing dust (or moisture) particles around.  The faster the fan blows, the faster the particles move.  And the radar gun simply detects the speed of those particles.  Duh!

I think no one wants to talk about that possibility because it doesn't fit with the endlessly taught belief that the radar gun emits electromagnetic waves.  How can a wave bounce off of a single dust particle in the midst of a cloud of particles?   It is not a problem, however, if you think of radar guns as emitting photons.  A photon can easily be reflected by an atom in a fast-moving dust particle.

If I did buy a radar gun, my first objective would be to find out if I am right or wrong in my understanding of how they work.  It seems incredible that there isn't already a video somewhere on-line that clearly demonstrates what a basic police radar gun will display if it is moving while pointed at a stationary object - or at an object that is moving at the same speed and in the same direction as the gun.

This morning, as I was writing this comment, I had more questions: At what frequency does the Bushnell 101911 radar gun transmit?  Can I buy a tuning fork for it?  Searching around for answers, I found Bushnell's "Speed Gun FAQs" web page.  It says, 
Question: How does the Speedster work?

Answer
: Once the trigger is engaged, the Speedster transmits radio frequency energy in the form of waves. The radar transmits 24 billion RF cycles of energy per second at the speed of light, which is 186,000 miles per second. The Speedster measures the difference between transmit and receive signals and relays this information to the DSP to quickly calculate +/- one MPH speed accuracy.  

So, it is a police band (K-Band) gun transmitting at 24.125 GHz. That's good.  But then I noticed another question and answer:
Question: If in a moving vehicle, can the Bushnell Speedster pick up the speed of another moving object?

AnswerNo. However, if you would like to know the speed of the vehicle you are in, point the Speedster at a stationary object, such as the ground.
Uh oh!  That's what I was afraid of.  My heart, jaw and stomach all dropped to the floor when I read that. 

Then, after thinking for a moment, I had to ask another question: Could the Bushnell work differently from police radar guns?  How could it?   I looked through the FAQs and found another relevant question and answer:
Question: What is unique about the Speedster compared to other radar guns?

Answer: The Speedster uses advanced Digital Signal Processing (DSP) software to filter out bad information, providing valid accurate information. In addition, the Speedster is capable of tracking baseball statistics.
HOW does it "filter out bad information"?  What IS "bad information"?  I searched further through the FAQs and found this:
Question: What technology does the Speedster consist of?

Answer: The Bushnell Speedster contains a K-Band microwave RF (Radio Frequency) transmitter whose signal gets reflected by the target object. The reflected signal will have a "Doppler Shift" proportional to the target speed. This Doppler frequency shift is detected in the receiver, amplified, filtered, and then digitized in an Analog to Digital Converter (ADC), and passed onto the Digital Signal Processing (DSP) chip. Using complex algorithms, the DSP chip filters out false and low level return signals, to identify and display the speed of the desired target. The speed along with various statistics and averages are then displayed on the LCD display.
It "filters out false and low level return signals"?  Those are undoubtedly the signals that cause police radar guns to sometimes give incorrect readings.  And a police radar definitely does NOT convert analog signals to digital signals.  Searching further, I found a couple other curious questions and answers that should not be correct if the Bushnell gun works like a police radar gun:
Question: Can the Bushnell Speedster track arrow speed?

Answer: No.

Question: Can the Bushnell Speedster track club head speed?

Answer: No.
A police radar gun would be able to track an arrow's speed and the speed of the tip or head of a swinging golf club.  It picks out the fastest moving object within its range cone (the cone of photons that starts at the transmitter and widens out to about 30 feet in diameter a block away).  A leaf on a tree that is flapping at high speed can give a police radar gun a false reading for a car passing near the tree.  For probably that reason, the Bushnell speedster is evidently programmed to do things differently.  Since it is used primarily for sports, could it be programmed to ignore the speed of the pitcher's arm and to somehow only measure the speed of the thrown ball (which may NOT be the fastest moving object in the range cone)?
 
One thing is absolutely certain:  I'm not going to buy the Bushnell radar gun just to confirm that it doesn't work the same way as a police radar gun.  And when trained on stationary objects from a moving vehicle, it produces a totally different result.  But, how would I be able to prove that without also buying or gaining access to a police radar gun?

It's a good thing I found that Bushnell FAQ page.  If I had first found a video demonstrating that a Bushnell gun in a car moving at 60 mph will show the ground to be moving at 60 mph, I'm not sure how I would have reacted.   Do other sports radar guns work the same way?  Who cares?  They all cost more than the Bushnell.  I'm done researching - at least until I can figure out how to get correct answers. 

Right now, it seems that no one is aware of the dispute over how police radar guns work - except for a few people on the sci.physics.relativity newsgroup and people who read this web site.  It seems that the mathematicians are content to believe what they want to believe, and everyone else is content to leave things that way in order to avoid arguing with the mathematicians.  It's the way things have been done for over a hundred years.  Who wants to be told that what has been believed for over a hundred years is total baloney?  They probably won't accept it, and they'll just wait for some other expert to show that what has been accepted for over a hundred years in still totally correct.

How many "experts" would argue that goats do not climb trees?  Would they be wrong if another expert said there is one type of tree that goats do climb?  Is it something we should wonder and worry about?  I think not.

Goats in a tree in Morroco

Besides, we have Donald Trump giving us plenty of other things to worry about. 


Comments for Sunday, May 12, 2019, thru Saturday, May 18, 2019:

May 17, 2019 - On February 26, I borrowed from my local library an audio book collection of five science fiction short stories by Philip K. Dick.  I listened to the first one, but didn't particularly enjoy it, so I set the book aside.  Then, yesterday, finding myself in need of something to do, I finished listening to the rest.  The collection is titled "A World of Talent and other stories."

A World of Talent

As an audio book, it is just 4 hours and 12 minutes long.  Here is how "Good Reads" describes the five short stories in the book:
 In "Small Town" a man creates a perfect scale model of his own town, as a means of escaping his unbearable reality. In "Human Is" the wife of a scientist notices that her husband has returned from a scientific expedition a changed man, but she's not complaining. In "Foster, You're Dead" a father's unwillingness to participate in his country's preparations for a war that never happens, leads to unexpected consequences for his family. In "The Hanging Stranger" a man is unable to convince his fellow townspeople that something terribly wrong is happening to them all. Finally, in "A World of Talent", society's reactions against those who have unusual talents have pushed the situation to the brink of interplanetary war.     
I wish I had read those descriptions before listening to the stories.  Basically, I spent my time trying to figure out what is going on.  If I had been reading the book, I would probably have given up.  But, for some reason, the fact that I didn't fully understand what was going on didn't cause me to stop listening.  So, what I did was waste time, which was evidently what I had decided to do when I started listening.  But, I finished it, so I'm logging it as completed.

This morning I received an email that read (partly) as follows:

International Summit on Physics & Astronomy

November 14-15, 2019 | Osaka, Japan

 

Dear Dr. Edward G. Lake,


We are pleased to invites you as an Invited Speaker for our Upcoming event "International Summit on Physics & Astronomy" scheduled on November 14-15, 2019 in Osaka, Japan. The theme of the conference is "Unleashing the Prophecy in the territory of Physics & Astronomy".

I'm not sure why they "invites" me, but I can guess.  It looks interesting, but I'll probably skip it.  I don't have a doctorate, and I don't understand the "theme."

Meanwhile, the problem with the TVs turning off at my gym twice a day seems to have been resolved (after nearly two years).  I assume someone followed the instruction sheet I gave them.  But I haven't seen the supervisor or any of the staff members I had talked with about it.  So, they are either hiding from me, or they have moved to other locations or other shifts.  It's another of life's mysteries.


May 16, 2019
- Yesterday evening, I finished listening to the audio book version of "Over the Edge of the World: Magellan's Terrifying Circumnavigation of the Globe" by Lawrence Bergreen.

Over the Edge of the World

I didn't realized it while I was I listening to it, but it is an abridged version of the hardcover edition.  Ordinarily, I do not listen to or read abridged editions.  I want the whole book or nothing at all.  So, now I have to wonder if I would have enjoyed the full book as much as I enjoyed the short version. 

I'm not sure how I decided to listen to it.  I think I was looking for something else on my library's web site and the audio version of "Over the Edge of the World" appeared as being available.  And because it was relatively short, I decided to borrow it.  However it came about, I'm glad I listened to it.  It's a very interesting piece of history.  I had an atlas of the world at hand as I listened, checking it to see if I could find places on the southeast coast of Argentina where Ferdinand Magellan, his five ships and 270 men explored in hopes of finding a way past South America and into the waters of Indonesia, unaware that the Pacific Ocean lay between those two locations.  One of Magellan's ship captains mutinied at that point and took his ship back to Spain.   Later, when the remaining four ships had made it to the other side of the Pacific, another captain left the fleet and tried to find a passage through Asia to get to the Atlantic.  He sailed all the way to Japan without finding such a passage. 

Magellan, of course, didn't make it past the Philippines. While he was generally a very sensible person, he also did some very stupid things, and starting a fight with a local warlord was one of them.  He didn't survive.  Close to 90 percent of the 270 men who began the voyage didn't make it all the way around the globe, although some simply decided to remain in the islands of the South Pacific.

I think what interested me most was the level of detail the book provided.  It appears that more than one person was keeping a detailed diary during the whole time.  When a single ship, the Vittoria, finally made it back to Spain, the ship's logs showed a missing day, which was also totally unexpected.  It was another lesson about living on a spinning globe.

I learned something else from the experience.  I'd been choosing science books, humor books, travel books technology books, plus mysteries and science fiction, but I hadn't been looking at history books.  This morning, when I browsed though what my library has in their history collection, I marked 8 audio books as being interesting enough for me to borrow when they become available.   There are probably a lot more, but I only went half way through the list, and I just chose what seemed at this moment to be the most interesting.

If I can ever get back on track with my research into the physics of radar guns, I may not have time to listen to any of them.      

May 14, 2019
- This morning I awoke thinking about tuning forks and the #1 dumbest idea in physics: the idea that all motion is reciprocal.  That idea is stated at the top of page 124 in The Complete Sermons of Ralph Waldo Emerson, Volume 3, and also frequently quoted from page 142 of the book Duration and Simultaneity by Henri Bergson.  And of course, it was also stated repeatedly in the arguments I had on the sci.physics.relativity UseNet forum.  When applied to tuning forks it means that there is no way to tell if the tuning fork is vibrating or if the tuning fork is motionless and the person observing and holding the tuning fork is vibrating.  I can tell.

I also keep thinking I should write a paper about the screwball ideas people have about radar guns and tuning forks.  Both subjects are incredibly simple when you understand what is happening, but mathematicians insist on complicating them to make arguments that are beyond absurd.  I just need to find the right way to approach the subject. 

Meanwhile, yesterday afternoon, to get my mind off of radar guns and tuning forks, I finished listening to the audio book version of the second Fox & O'Hare novel by Janet Evanovich and Lee Goldberg, The Chase

The Chase

It took me 3 days to get through the 9-hour, 7-minute audio book.  While the novel was amusing and enjoyable, it also seemed to be a hodge-podge of multiple crimes and multiple solutions.  It starts out being about recovering an historic artifact - the bronze head of a rooster, one of the 12 symbols of the zodiac, worth about 20 million dollars - that was stolen by French and British troops from the Chinese Imperial Garden outside of Peking in 1860. When that artifact is recovered at about the mid-point in the novel, the story turns to being about recovering 3 Rembrandt paintings (worth about 100 million dollars each) stolen from a Montreal museum around the time the stolen bronze rooster head was being recovered.  So, in a way, it is like 2 novels in one.

Like The Heist, which I finished on May 8, a lot of the humor in the book comes from the sexual tension between handsome con man and thief, Nick Fox, and beautiful FBI agent and former Navy Seal, Katy O'Hare, as they are forced to work together to solve the crimes.  I have the later 3 novels in the series, but I think there are other audio books I want to hear before those become a priority.   


May 13, 2019
- I'm not sure of exactly how long it took me to write yesterday's comment.  I know I worked on it for probably around 3 hours on Saturday and another 3 hours on Sunday.  Some of that time was spent trying to figure out how to illustrate the different speeds at which different parts of a tuning fork move.  But then I figured that no matter what kind of illustration I produced, it wouldn't change anyone's mind if they believe what Kevin Brown believes:
Incidentally, people sometimes mistakenly think that the tuning fork calibration works by putting the fork arms in motion at the calibration speed. It should be obvious that this is not correct, first because the arms of a tuning fork move at a range of speeds, positive and negative, on each cycle, second because the speed of motion differs along the length of the arms, and third because the maximum speed of the arms depends not just on the frequency but on the amplitude, which depends on how the tuning fork is struck. It would generate a specific maximum speed of arm movement only if struck with precisely the right force, and even then it would begin to dampen out immediately, so it would actually produce a continuously varying maximum speed, which would be different at different positions on the arm, and with different orientations. Hence the arms of a tuning fork obviously do not move at a consistent reference speed.
This morning, an idea occurred to me.  I wondered if there were any slow motion videos of tuning forks on the Net.  I found many, but two are particularly good.  The first video shows a tuning fork that is fixed to a table being hit by a wooden ball-shaped striker.  The fork vibrates for about 4 minutes in slow motion, which is probably just a few seconds in real time.  But you can clearly see that the ends of the tines move fastest, and the farther you go down to the base you look the slower the tine moves.  In other words, the tines wave back and forth, but the ends move farther in the same amount of time the bottom of the tine moves a shorter distance.  And speed is distance divided by time.  Here's that video:



The second video is more of the same, except that this time the tuning fork is being held by the demonstrator, and he moves the tuning fork around so you can view the vibrations of the tines from different angles.  



It should be clear to anyone viewing these videos that if you point a radar gun at at a vibrating tuning fork that is turned sideways to the gun, every part of the tuning fork tine is going to be moving at a different speed than every other part.  Kevin Brown was right about that.  But, Brown is clearly wrong in arguing that the tuning fork
would generate a specific maximum speed of arm movement only if struck with precisely the right force, and even then it would begin to dampen out immediately, so it would actually produce a continuously varying maximum speed
Both videos clearly show the tuning fork vibrates at a constant speed for a long period of time (the time needed to put the fork in front of a radar gun and keep it there until a reading is completed), and amplitude has nothing to do with anything.  Here's a screen capture from the second video showing which parts move fast, medium and slow:
 
Tuning fork vibration speeds

Basic radar guns just measure and display the fastest speed in the target area, which would be the speed of the tip when it is mid-way between swings.  That has nothing to do with sound waves or waves of any kind.  It is just about what happens to photons when they hit various parts of the tuning fork at different times, and how the photons returning to the gun oscillate at different frequencies depending upon what part of the tuning fork they came from.  Period.  


May 12, 2019 (B)
- Last week I had almost decided to give up on trying to prove anything about how radar guns are calibrated by using tuning forks.  Then, in my May 6 comment I mentioned the "Radar Guns and Tuning Forks" section of Kevin Brown's web site mathpages.com.  Here's a quote from that section that I didn't mention in my May 6 comment:
It’s important to note that the tuning fork is not sending a signal of 30 GHz + 4480 Hz, as would be the case for a genuine speed detection for 50 mph. The arm of the tuning fork is never moving at 50 mph (not even close). The tuning fork is only modulating the incident signal (which merely serves as a carrier wave), and this modulation has a frequency of 4480 Hz, which is equal to the beat frequency that would result from a Doppler-shifted signal reflected off an object approaching at 50 mph. In effect, the tuning fork is tricking the radar gun into thinking there is an object approaching at 50 mph, when in fact the tuning fork is just inducing a fluctuation in the antenna and receiver at the frequency of the beat that would be produced by an object approaching at 50 mph.
After reading the part I highlighted in red above for the 3rd or 4th time, I decided it cannot be correct.  So, I set about trying to figure out how fast the tine (or arm or prong) of the tuning fork is moving when the radar gun shows it is moving at 50 mph.

I visited a web site that does some of the calculations and displays them this way:

Radar gun speed calulation #1

As you can see, I entered the Radar Frequency of 30 GHz, the Tuning Fork Tone of 4480 Hz, and then clicked on "Calculate or Re-Calculate."  The displayed result, as shown above, was 50.07 mph.

So, the question then becomes: How fast is the tine moving when it gives a tone of 4480 Hz (and why does anyone care about the tone)?  There can be no doubt that the tine is moving.  Plus, we know that 1 Hz means 1 cycle per second.  But, a "cycle" is not a measurement of speed or distance.  In fact, when converted to distance, a cycle becomes a "round trip."  That means that if a tine moves 1 millimeter, a "cycle" is 2 millimeters.  The tine moves 1 mm in one direction and 1 mm in the other direction in one second.  Therefore the complete cycle and total distance the tine travels in one second is theoretically 2 mm.

But there's another problem: Obviously, the tine does not move at a constant speed as it vibrates back and forth.  It must come to a stop at the end of each move, and it must then gain speed again as it moves in the opposite direction.  It only travels at its maximum speed around half way between starting and stopping.  And we know the radar gun measures the tine's maximum speed, not its average speed, which is probably around 25 mph.  (The radar gun does multiple readings to make sure it has the correct maximum speed.) 

Kevin Brown's article also addresses this situation by saying,
Hence the arms of a tuning fork obviously do not move at a consistent reference speed. Moreover, to produce a maximum arm speed of 50 mph at the relevant frequency of (say) 4480 Hz would require the arm to swing a distance of 78 mm, whereas a typical tuning fork of this size has a maximum arm displacement of only about 0.02 mm. So, the speed of the arms of a tuning fork is orders of magnitude less than the speed of a moving automobile. For all these reasons, it is obvious that tuning forks do not (and could not) test radar guns by producing a moving surface at the calibration speed. 
I don't know where he got the 0.02 mm figure from, but the key point I'm trying to make is that the tine is moving at 50 mph for only a tiny fraction of a second and for only a small portion of each vibration.  At the beginning and mid-point of each vibration the tine isn't moving at all.  Its speed would be measured as zero.  That would seem to say that the mathematics have nothing to do with reality, it is just a way of calculating a correct answer without any need to know what is actually going on.  The formula v=cfd/2f0 means velocity is the speed of light per second multiplied by the fork tone per second divided by 2 times the radar frequency per second.  What does that have to do with reality? 

I found a web site which calculates speed for a given time and distance, and I plugged in 2 millimeters distance (actually 0.2 centimeters) in 1/8960th of a second (actually 0.00008960 seconds), and I got 49.93 mph: 

time distance speed calculation

I'm no mathematician, so I could certainly have done something wrong.  I'm assuming that the tip of a tine on a 50 mph tuning fork can move 1 full millimeter, and I'm guessing that if the tip has a top speed of 50 mph, its average speed is ½ of that. 

Researching further, I found an article about calibrating radar guns using tuning forks that was published in the Journal of Research of the National Institute for Standards and Technology (NIST).  The authors say,
The tuning forks used to calibrate DTR [Down The Road] radar are usually machined from a solid aluminum blank to provide an acoustic resonant frequency that gives a specific speed indication for a given f0 [radar frequency]. To calibrate the DTR radar, the tuning fork is struck and then placed in front of the transceiver. The vibrations of the tuning fork modulate the phase of a radar signal reflected from it. This modulation simulates the difference frequency that is determined by the radar processing unit from a Doppler shifted return from a moving vehicle. However, the tuning fork does not actually simulate a moving vehicle. This difference will be clarified with the following discussion.
The "difference" that is "clarified" in the "following discussion" after the above paragraph in the article is mostly mathematical, so it is difficult for me to decipher, but it seems to say that the tuning fork does indeed "simulate a moving vehicle."   And it does.

At one point in every vibration of a tine, the tine is moving toward the gun at 50 mph, and at another point in every vibration the tine is moving away from the gun at 50 mph.  At all other points in every vibration, the tine is moving at a speed that is less than 50 mph.  The gun measures all the other speeds, too, but it only displays the maximum speed, which is 50 mph.  So, the tuning fork "simulates" a fast moving vehicle amid a mass of slower moving vehicles.

I translate the term "modulate the phase" to mean "alter the frequency", which means writing this: "
The tuning fork imposes a phase modulation on the incident microwave signal" would have been more clear if it had been written as "The tuning fork causes a frequency change to the original microwave signal."  That is also what a moving vehicle does when it is hit by the "microwave signal."

I can also see that, no matter how much I argue that a radar gun does simulate a moving vehicle, others can just quote the NIST as saying, "the tuning fork does not actually simulate a moving vehicle."  And it won't do me any good to say that isn't true.  The tuning fork does simulate a moving vehicle for the tiny fraction of a second when it the radar gun is measuring the tuning fork's top speed.

I keep thinking I need to put this all in a scientific paper.  The paper would show the utter stupidity of viewing light (and radio signals) as waves when light (and radio signals) actually consist of photons. 

When radio signals are viewed as waves, the radar gun is typically viewed as if it was emitting sound waves.  The movement of the side of the tine on the tuning fork creates different sound waves when it compresses and decompresses the air next to the tine.  So, you are shown sound waves that are far apart being emitted by the radar gun and sound waves that are close together being returned to the radar gun.  If you view what is actually happening as consisting of radio waves, things are very different.  The radar gun sends out radio waves of a specific frequency and the tuning fork returns waves of an incredibly wide range of frequencies.  The tip of the fork is moving faster than the middle and bottom of the fork and every point in between, so the fork is returning waves of countless frequencies.  In addition, the tip of the fork is virtually stationary at the start and midpoint of every vibration, and it only moves at its top speed at the midpoint between every swing.  So, waves bouncing back from the tip of the tine also return at countless different frequencies.  There is a vast difference between real sound waves from a tuning fork and imaginary returned electromagnetic "waves."    

If you look at radar guns as emitting photons, things are vastly simpler.  The gun emits a spray of billions of photons (all oscillating at a specific rate) toward the vibrating tuning fork, a tiny portion of which actually hit the fork.  The photons that hit are absorbed by atoms in the fork and then new photons are emitted by those atoms.  The new photons oscillate at different rates depending upon how fast the atom it hit was moving when hit.  The speed of the moving atom is added to the oscillation rate of the photon. The gun selects the returned photons that are oscillating the fastest, verifies that there is more than just one such photon, and then converts the difference in the oscillation rates between the emitted photons and the fastest-oscillating returned photons to compute the maximum speed of vibrating tuning fork.

Simple. 

But how come no text book or manual or article (except mine) describes things that way?


May 12, 2019 (A) - This morning, someone posted a very interesting comment to the Astrophysics and Physics Facebook group.  Here's the first part of it:
Oxford University researchers have discovered the densest element yet known to science.
The new element, Governmentium (symbol=Gv), has one neutron, 25 assistant neutrons, 88 deputy neutrons and 198 assistant deputy neutrons, giving it an atomic mass of 312.
These 312 particles are held together by forces called morons, which are surrounded by vast quantities of lepton-like particles called pillocks.
Since Governmentium has no electrons, it is inert. However, it can be detected, because it impedes every reaction with which it comes into contact.
A tiny amount of Governmentium can cause a reaction that would normally take less than a second, to take from 4 days to 4 years to complete.
Governmentium has a normal half-life of 2 to 6 years. 

Comments for Sunday, May 5, 2019, thru Saturday, May 11, 2019:

May 10, 2019 - I'm continuing to research radar guns and how tuning forks are used to check their calibration, but it is hard to find anything that states anything that is not ambiguous.  What I did find was a"scientific paper" that says,
The velocity of a wave is proportional to its frequency. Doppler effect shows that both the velocity and the frequency depend on the reference frame. The higher the detected frequency is, the faster the wave travels toward the detector. One example is the radar gun used by the traffic police. The reflected radio wave travels faster than the emitted radio wave. This results in frequency difference between two waves. This difference is used to calculate the velocity of a vehicle.
I think that's the first paper I've ever encountered which argues that the speed of light changes to c+v when the radio waves return from the target vehicle.  And, if I'm not mistaken, the first sentence says that high-frequency waves (like visible light) travel faster than low-frequency waves (like radio waves).  That certainly isn't true, either.  Of course, the paper uses mathematics to prove its theory.

The paper was found on vixra.org by searching for papers with "radar gun" in the abstract.  It was the only one I found.  My paper about "Radar Guns and Einstein’s Theories" is the only paper that contains "radar guns" in the abstract.  Before searching through vixra.org, I tried arxiv.org and didn't find any papers with either "radar gun" or "radar guns" in the abstract.  When I tried Google scholar, however, I found 1,870 matches on "radar guns" and 5,610 matches on "radar gun."  And there around 75,000 which have "tuning fork" somewhere in the paper.  I'm going to browse the ones that look interesting to see if they have something of value to say.

Meanwhile, none of the TVs at my gym turned off all week while I was there.  I think my instructions on how the fix the problem may have been followed.  I'll have to see what happens next week to be sure.  

May 9, 2019
- Yesterday evening, at about 6:20 p.m., I finished listening to the audio book version of "The Heist," the first book in a series of "Fox & O'Hare" novels by Janet Evanovich and Lee Goldberg:

The Heist 

I really enjoyed reading the first seven "Stephanie Plum" novels by Evanovich.  I have another seven in paperback and hard covers on a book shelf in my front room, and more on my Kindle, but I didn't have and hadn't read any Fox & O'Hare novels.  When all 5 of them suddenly became available in audio book form from my local library, I borrowed all 5.  It took just two days to finish "The Heist," and it's the second-longest book in the series.

The central characters are beautiful Kate O'Hare, who is an FBI special agent, and handsome Nick Fox, who is a super-thief and con artist that O'Hare just arrested and got sentenced to 5 years in prison.  The two are forced to work together when FBI headquarters orders O'Hare to work with Fox to recover a half-billion dollars stolen by an investment banker who has fled to a lush villa in Indonesia, which has no extradition agreement with the U.S.  Since the FBI cannot touch the culprit legally, Fox and O'Hare have to con him into returning the money (actually they steal the money back).  It's kind of a funny premise, and the book has a lot of humor and sexual tension between Fox and O'Hare.  Plus it has pirates and a lot of travel information about Indonesia.  While it certainly wasn't as good as any of the Stephanie Plum novels I've read, it was still enjoyable.  The question now is: Should I listen to the second book in the series (which is also the longest at 9 hours and 7 minutes) or should I read the eighth book in the Stephanie Plum series?  Or should I read something else?

Or should I work on resolving questions I have about radar guns, tuning forks and Einstein's Theory of Special Relativity?  I dunno.  I just do not understand why more people aren't asking the questions I'm asking.  If it is because everyone else already knows the answers, why aren't documented experiments providing those answers readily available everywhere?  It can't be because no one else in the world gives a damn.  Or can it?


May 8, 2019
- Yesterday afternoon, at about 4:45 p.m., I finished listening to the audio book version of "Around the World in 50 Years: My Adventure to Every Country on Earth," by Albert Podell.

Around the World in 50 Years

It was an extremely interesting book, and not at all what I expected.  I think I was expecting a book where the author just describes walking around and seeing the sights in different countries and being amazed by their curious customs and unusual foods.  But "Around the World in 50 Years" is far more of an adventure book.  Albert Podell is a travel writer, and he had already visited all the "pleasant" tourist attractions, since he did that job for decades, before he decided to visit all the rest of the countries in the world.  It actually took him over 50 years to make the 102 separate journeys, to travel nearly a million miles, to visit all 203 countries in the world (7 of which no longer exist).  The book is mostly about going to the places where people who travel for fun would never go: central Africa, remote parts of Asia, and remote island nations in the South Pacific.  According to Amazon's review:
He survived riots, revolutions, civil wars, trigger-happy child soldiers, voodoo priests, jihadists, robbers, corrupt cops, and Cape buffalo. He traveled through every kind of earthquake, cyclone, tsunami, volcanic eruption, snowstorm, and sandstorm that nature threw at him. He ate everything from old camel meat and African field rats to dung beetles and the brain of a live monkey. And he overcame encounters with crocodiles, hippos, anacondas, giant leeches, flying crabs―and several beautiful women who insisted that he stop this nonsense and marry them.
A lot of the book involves travels to Islamic countries where civil wars have raged for decades, places like Chad, Mali, Niger, Ethiopia, Uganda, Nigeria, Ghana, and Yemen.  In some countries, like Yemen, he had to cross the border illegally, since there was no way for an American tourist to get into the country legally.  He didn't travel alone, however.  He traveled with body guards and usually a few friends, including some beautiful female friends.  Most of the time in Africa, he traveled via private vehicles, only using "public transportation" when traveling by air.  Bribes were common nearly everywhere, and more than once he paid as much as $4,000 to bribe someone to let him enter some place where Americans were forbidden to go.

In Asia, he visited Burma (Myanmar), Mongolia, Nepal, Bhutan, Thailand, North Korea and Vietnam, among others.  And he doesn't hide the fact that he visited some sex clubs in Bangkok where $150 paid for 2 hours of massages, bathing and sex with his choice from  "60 lovely ladies, ages 18 to 28, [who] were seated on a three-tiered stage, all provocatively dressed, each with a big numbered button on her dress for identification."

In the South Pacific he visited countries like Brunei, East Timor, Kiribati, and the tiny island nation of Nauru, "a speck in the Pacific, 25 miles south of the Equator, little known and rarely visited, a sad story and a strange piece of work, the 185th nation on my quest.
"At 26 square miles, it is the third smallest nation, larger only than Monaco (0.7 square miles) and Vatican City (0.2 square miles). With fewer than 10,000 inhabitants, Nauru is ahead of only Vatican City (population 850), the smallest internationally recognized independent state by both area and inhabitants."      
What I got from the book is that a lot of the world is involved in civil wars and wars with neighboring countries.  I thought I already knew that, but I clearly didn't realize just how many countries are very dangerous to visit, particularly those where Islamic extremists are numerous and active.

The last country he visited was Angola in southwest Africa, but then in 2014 he revisited Yemen and Equatorial Guiana legally just to make them official. 

I listened to the audio version of the book over a period of 3 days.  Since it is 13 hours long, that means I listened for an average of more than 4 hours per day.

After supper yesterday, I began listening to another audio book, a detective novel, which I half finished.  Listening to audio books keeps me from thinking about radar guns, tuning forks and physics.  Hopefully, I'll be viewing those subjects with a "fresh mind" when I get into them once again. 

May 6, 2019
- While researching radar and lidar guns this morning, I found another quote from the same mathematician I quoted yesterday:
Incidentally, people sometimes mistakenly think that the tuning fork calibration works by putting the fork arms in motion at the calibration speed. It should be obvious that this is not correct, because the speed of the arms of a tuning fork depends not just on the frequency but on the amplitude, which depends on how hard we strike it.  It would generate a specific speed of arm movement only if struck with precisely the right force, and even then it would begin to dampen out immediately, so it would actually produce a continuously varying maximum speed, making it not useful for calibration. Moreover, to produce an arm speed of 50 mph at the relevant frequency of (say) 4480 Hz would require the arm to swing a distance of 78 mm, whereas a typical tuning fork of this size has a maximum arm displacement of only about 0.02 mm. So, tuning forks do not test radar guns by producing a moving surface at the calibration speed.  Needless to say, they also do not work by means of acoustic sound waves, since the radar receiver isn’t affected by acoustic waves.  It just so happens that the Doppler shift for automobile speeds and radar waves is in the range of audible frequencies.
A tuning fork vibrates at a given rate and produces a specific sound frequency, which is the purpose of a tuning fork.  According to another source:

There are 2 basic qualities of sound:

  • Pitch (high & low)
  • Volume (loud & soft)

Pitch is related to frequency. Changing the number of vibrations per second changes the pitch. The pitch that a particular tuning fork generates depends on the length of its prongs. Each fork is stamped with the note it produces (e.g. A) and its frequency in Hertz (e.g. 440 Hz). Shorter prongs produce higher pitch (frequency) sounds than longer prongs. Long prongs will bend more readily and therefore tend to vibrate at a lower frequency when struck.

Volume, or loudness, is related to the strength, intensity, pressure, or power of the sound. Bigger/ amplified vibrations result in bigger/louder sounds.

I'm going to have to do more research to make certain I understand how that works.  Clearly it disagrees with the first quote.
 
Curious as to who the author of the first quote (and the quote I used yesterday) was, I accessed https://www.mathpages.com/ and found the author was someone named Kevin Brown, who has evidently self-published 16 books and a couple hundred "articles" about mathematics.  However, there isn't any information at all on his web site about who Kevin Brown is.  A Google search finds a site that says he is Dr. Kevin S. Brown who lives in Kent, Washington.  But that is all it says.  And it seems that other people have also been trying to find out more information about him.  He seems to have spent a lot of time arguing on UseNet (and Google) science forums.  So, I may actually have argued with him.  He arguments are certainly virtually the same as the arguments some people on sci.physics.relativity have used.

Meanwhile, when I went to the gym this afternoon, nearly all of their TVs were working fine, and none did the automatic power saver shut off while I was there.  One cable box seemed to be turned off, but I have no idea why.  Is the problem with the power saver switch fixed?  Time will tell.  Did they use my instruction sheet to solve the problem?  I may never find out.    

May 5, 2019
- I think I'm slowly recovering from my trip to Virginia.  Instead of thinking about things discussed while in Virginia, this morning I awoke thinking once again about radar guns ... and LIDAR guns.  
And I was also thinking about the quote I used on May 3:
Dijksterhuis’s work also shows that our unconscious thought processes don’t engage with a problem until we’ve clearly and consciously defined the problem. If we don’t have a particular intellectual goal in mind, Dijksterhuis writes, “unconscious thought does not occur.”
I'm not sure if my conscious or unconscious mind came up with it, but I awoke this morning wondering about two things:
1. Can a radar gun send and receive signals at the same time?

2. Can a radar gun measure distances?
I think the answer to the both questions is "No."  I recall reading that a radar gun sends a signal and then switches to receive mode to capture the return signal.  And I recall reading that basic radar guns do not measure distances.  LIDAR guns measure distances.  Basic radar guns are "continuous wave" radar, which simply means that it is sending out radar photons for as long as you hold down the trigger.  According to an on-line source:
As opposed to pulsed radar systems, continuous wave (CW) radar systems emit electromagnetic radiation at all  times. Conventional CW radar cannot measure range [i.e., distance] because there is no basis for the measurement of the time delay. Recall that the basic radar system created pulses and used the time interval between transmission and reception to determine the target's range.  If the energy is transmitted continuously then this will not be possible. 
That also seems to say it is sending and receiving at the same time.  However, it could also mean that it is constantly switching between send and receive modes when you hold down the trigger.  The key point is that you cannot measure distances that way.  Using radar, you can only measure speed via the Doppler effect.  The Doppler effect is measured by comparing the emitted photon "wavelength" to the returned photon "wavelength."

LIDAR doesn't compare wavelengths, it measures distances.  Here's how one web site describes the way LIDAR guns work:
Lasers use light and we know the speed of light (roughly 186,000 miles per second). When we send a quick pulse of light out, it will travel from the lidar gun, to the target vehicle, and back. If we measure how much time it takes to get a reflection (time of flight), we can calculate how far the light had to travel. Because the laser beam had to make a round trip to the car and back, if we divide that number by two, we’ll get the distance between the lidar gun and the target vehicle. That’s step one.

Now one pulse will give us distance (not speed), but if we shoot a whole series of pulses, we can determine the change in distance over time which will tell us the vehicle’s speed. (Speed is simply a measure of distance divided by time, i.e., feet/second or miles/hour).
That same web page also says,
Laser guns typically take about 0.3 sec to get a lock on a vehicle and for an example laser gun that fires 200 pulses per second, this means it needs 60 return pulses to get a reading.

As a vehicle moves towards or away from the gun, the distances should all make sense… something like 1000 feet, 999, 998, 997, 996, and so on. It’s only with a smooth set of distances like this that the gun can ensure that it’s locked onto a single target, it has a clean lock, and so on.
That second quote is kind of misleading since it suggests that if the gun sends out 200 pulses and gets back only 60, there is no way to match the sent pulse to the received pulse.  In reality, the gun sends out a pulse, waits for the pulse to return, then sends out another pulse, waits for that pulse to return, etc., 200 times per second.  So, it knows that the pulse it got back was from the pulse it just emitted.  If it doesn't get back a pulse in a specific amount of time, it tries again.  Traveling at 186,000 miles per second, light can make thousands of round trips from a police LIDAR gun to a target a block away in one second.

Each round trip pulse measures the distance to the target.  Knowing the time between pulses allows the gun to compute how far the target traveled between distance measurements, and thereby how fast the target was traveling.

One key argument I've had with mathematicians is about the Doppler effect.  LIDAR guns do not use any Doppler effect.  However, you can easily find a math-oriented web page that says LIDAR does use the Doppler effect.
There seems to be a widespread misconception (in some venues) that LIDAR speed guns do not use the Doppler effect to measure speed. This may be traced to a popular online source, which gives the following ‘explanation’ for how a LIDAR speed gun measures speed, contrasting it with how a radar gun measures speed:
A normal radar set sends out a radio pulse and waits for the reflection. Then it measures the Doppler shift in the signal and uses the shift to determine the speed.  Laser (or LIDAR, for light detection and ranging) speed guns use a more direct method that relies on the reflection time of light rather than Doppler shift.
This ‘explanation’ actually highlights two misconceptions.  First, it is obviously wrong to suggest that LIDAR speed guns don’t rely on the Doppler effect to determine speeds.
The page then sets about using math to prove that LIDAR does use the Doppler effect.  Actually, it only proves that you can use math to prove whatever you want to prove.  If you have a basic misunderstanding about something, you can still develop mathematical equations to confirm what you believe.  That is what mathematicians did when they believed that the Sun and stars orbited around the Earth.
   
To add to the confusion, weather radars are commonly called "Doppler radars," but they do not use the Doppler effect.  Weather radars measure the distance and direction to a rain drop.  It should also be obvious that they cannot track a specific rain drop, especially since the rain drop is falling downward and the weather radar tracks lateral movement of weather systems.  What weather radars do is take a "snapshot" of the current location of countless raindrops in the area, then it takes another " snapshot" a few minutes later, and then another, and then they put the "snapshots" together to create a time-lapse movie so we can see how the weather moves.  There is no "Doppler effect" involved.  

I think the physics of LIDAR versus radar can be used to solidly disprove some common screwball beliefs held by mathematicians.  But, mathematicians will never believe the proof, since they will just develop a mathematical equation that proves whatever they want to prove.  Generally speaking, math cannot be used to confirm theories.  Observations and experiments confirm theories.  Math is just a tool that is used to help figure out what kind of observations and experiments to perform.  If the experiment doesn't work, then either the theory or the math is wrong - or the experiment was improperly constructed - or all three.








Other interests:

fake picture of snow on
                    the pyramids
 Click HERE for an analysis of this fake photo.

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