The Summary

For those who are not interested in reading all of those 6 previous posts in this category, or those who may decide to read those after reading this summary, here is the brief summary of those. (All these puns and wordplay are totally intended).

Ok main point I tried to make:

  1. The main conclusions made by Einstein based on Michelson/Morley experiment may not be correct (as Einstein suspected himself) and the experiment results can be explained by gravitational drug theory (GDT).
    • The standard argument against GDT can be disputed (you’ll actually need to read the long version for this)
  2. The media allowing propagation of electromagnetic waves (or aether for the lack of better term) exists and may account for the Dark Matter
  3. The time dilation is an illusion created by the time differences observed when observers register events reaching them by means of electromagnetic wave, and are determined by the speed of light moving through aether.
    • Read details describing paradoxes resulting from the assumption of time dilation
    • The experiments conducted with two atomic clocks can be explained by Doppler Effect which atomic clocks will be prone to, under assumption of aether and constant (other things equal) speed of electromagnetic wave relative to aether.
  4. A side observation: aether, can contribute to light attenuation, which would alter the evidence of acceleration of universe expansion.

If interested to read more of my blubbering on these and some other topics, please dive in and read the 6 posts which I, quite unfortunately, titled; “Listen to The Thunder”.

Listen to The Thunder (Part 3)

The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.

William Lawrence Bragg

ALL THOSE SPECULATIONS…

In my previous post, I promised to talk about M&M experiment, and how I won’t need special relativity to explain it to you. It might have been April fool’s day, I’m not sure right now, but turns out I was lying: I’m going to chat about something else now. Do not worry: I’ll get back to you on M&M experiment and other “evidence” of time delation later. I already started to write it and even found a great quote from Karl Freidrich Gauss to serve as an epigraph for it. It goes like this: “I have had my results for a long time: but I do not yet know how I am to arrive at them.” Nice, isn’t it? Anyway, I’ll do that in the next post, since it’s a bit involved and some of my argumentation may have a thing or two derived from the stuff I’m going to speculate about right now.

One problem I have with scientists of all times is that they always think too much about their current knowledge, it’s like: “yes sure, the previous generation of scientists made nasty mistakes, but now we know…” It seems like we never learn. Take, for example that new fad about the big bang, expanding and accelerating universe. You wanna know how they arrived at these ideas? With a lot of arrogance and over-confidence which often leads to, what I call: “tunneled thinking”… unless I’m wrong and they are right, but we’re not going to seriously consider that possibility, are we?

All started with Edwin Hubble, who was spending all his time looking at the stars and admiring their pretty colors. After watching them for a really long time, Edwin started to notice that most of the far away galaxies (he must be praised for discovering galaxies, by the way) are rather red in color. His first thought was that perhaps communists occupied far corners of the universe, and so he panicked a little, but then he thought about the Doppler shift and that was a great relief for the poor guy raised in a capitalist society. Luckily (or unluckily), scientists already new about the Doppler effect, that is: the property of waves to change their observed frequency depending on the speed of the wave source relative to the observer. If they didn’t know about it, they could have arrived at the correct interpretation, but no: the Doppler shift was a cool explanation and everybody jumped on it with excitement. Have you noticed, that when somebody jumps with excitement they don’t think about alternatives, often they don’t think at all: it’s jumping time.

So, since we know about Doppler shift, then the red color must mean that most of the galaxies are moving away from us. Then, using Doppler’s formula, we calculate the speed of the expansion, then, it’s easy to calculate how long ago the universe started to expand from a single point. Why? Isn’t it obvious? You just roll back this expansion and the universe bound to converge into a single, infinitely small point in some distant past, of course.(that was a sarcasm, by the way). Now, again: obviously, it was a big explosion which made universe expand with the speed significantly higher than the speed of light (otherwise how would 14 billion year old galaxies be 28 light years apart from each other? But scientists say it’s because the space itself was expanding faster than light speed, (just assume it can do that, OK?), and, according to new observations of the red-shift, and the attenuation (explained below) from very far away galaxies, they are expanding with higher and higher speed. Don’t ask me how come we started from the speed higher that the speed of light and still accelerating… I don’t want to think about it.

Anyway, here we are with few observations: further away is a galaxy (most of them, at least) higher is the red shift, and the attenuation (just wait, I’ll explain it in a minute) is higher than “expected” (like they know what to expect from the light that travels for billions of years through the wild place called: “the universe”). That’s all, and we came up with all that crazy $%&! And then comes ME, an ignorant person who refuses to look at the Friedmann equation (and few hundreds of other equations, for that matter) with the hope that the common sense alone may magically change the course of the history of science. And here’s what ME has to say: have you guys listened to the thunder recently? (You knew this was bound to happen eventually right?) Have you noticed that further away the thunderstorm is, lower is the highest pitch of the thunder? If it’s really far away, you just hear low rambling of it. Or recall that idiot in the traffic who has his music going at 100 decibel, but all you can hear from your car is the sub-woofer booms. Well, there is reason for that, namely: lower frequencies travel further. No, no, no: I’m not discovering anything new here: when wave propagates through a media it gets absorbed by it (this is called: attenuation; here, I explained it), and, generally, higher the frequency, higher the attenuation. Radio waves, which are electromagnetic waves, just like visible light, are also totally cool with that idea and travel further through the air at low frequencies. And scientists knew about it, but… tunneled thinking.

So, wouldn’t it be natural for the light coming from very distant galaxies behave similarly and attenuate away it’s higher frequencies as it travels to us for billions of years? The space is not completely empty, you know, and when you travel really long distances you bound to hit some minor nebulae or some stranded particles along the way. And if there is something like ether filling out the space, I bet it would join the “attenuating” frenzy at every inch of light’s propagation. And, further away the galaxy is, redder and redder would be their color.

Of course there is a Doppler effect too, but having second ingredient to the red shift totally spoils the expansion/acceleration/big bang fairy tail, doesn’t it? We may not be able to tell for sure if the “redder” galaxies are moving away from us or towards us, unless we calculate attenuation accurately, which we can’t really do without knowing exactly what was in the path of the light from a specific galaxy. One thing we can say for certain though: those few galaxies, which do not demonstrate any red shift, are definitely moving towards us and with much higher speed than we previously thought.

Now, I may be totally wrong and my interpretation may tell only small part of the story, but, at least, it might make you think about the multitude of possible alternative interpretations of the same observations and do not run to conclusions and “tunneled thinking” too quickly.

Just few random thoughts, before I attack the M&M observations and other “evidences” of STR in my next post.

Listen to The Thunder (Part 2)

For an analytical brain, listening to the thunder may reveal more secrets than years of science research.

A.H. (yeah, this is just me being a smart-ass)

FINDING THE PARADOX

In my previous post I tried to explain, in simple (as I fantasized) words: why Einstein came up with his Special Theory of Relativity and what it is about. And, if you recall (assuming you read it), I promised to discuss some big problems which necessary follow from treating its majesty: Time, in such careless manner, I may say.

First, I have to mention, that there are many well-known paradoxes, which the theory advocates tried to explain with somewhat dubious explanations. Among those: the twin paradox I mentioned before, or the so-called: Trouton-Noble paradox, which is related to another ether-dismissing experiment, not surprisingly called: “Trouton-Noble experiment“. If the word: “another” confuses you, read my previous post, where I briefly describe the most famous ether-proving-but-proved-to-be-disproving experiment, called: Michelson–Morley experiment, which I took the liberty to abbreviate to: “M&M” for shortness and for fun… And, stop bugging me, just read my previous post, would you?

I’m not going to repeat these paradoxes, and rather describe a better one: more obvious and, in my invariably humble opinion, more difficult to dismiss.

Now, you may ask: why would you try to find contradictions in the theory, instead of just providing a credible explanations to the ether-disproving experiments? Well, first of all, I’m going to do both: the former in this post, the latter in the next one. Second: proving that Einstein’s theory can’t be correct, opens a see of possibilities, and honestly, I’m not necessarily advocating the existence of the ether, in conventional sense, but, whatever my own theories are, they would be, in Occam’s Razor sense, more plausible than, putting it simply, impossible ones.

OK, let’s get back to the example from my previous post with me and Greg having fun with relative motion. Here we are again (I’m the one in amazing blue colors), but this time I’m moving in opposite direction: towards the light source.  Alternatively, you can imagine that I’m going in the same direction but the light is on the opposite side of me. I’m just saying this, so you don’t bug me with stupid statements like: “it’s different because you’re moving in different direction”.

LTTT_Pic3

Now, from Greg’s point of view, the light reaches me before it reaches Greg, like this:

LTTT_Pic4

Again, like I explained in the previous post, due to the relativity principle, for each of us, it takes the light the same time to reach us: d1/C. One more time: from my point of view the light reaches me in d1/C, because the light source and I are in the same Inertial Frame of reference (see my previous post on this), but from Greg’s point of view, the light reaches me within: d2/C, so from Greg’s point of view my time is faster than Greg’s time. Let’s pause here, take a breather, relax… Done? Good. Now, remember that, in my previous post, following similar line of thought we discovered that (again from Greg’s point of view) my time (d2/C, or what we called: t2) was slower than Greg’s time (t2 > t1), now, by moving the light source on the opposite side of me, we discovered that my time is faster than Greg’s time (t2<t1).

I hope you’re not imagining that moving the light source from one end of the platform to the other can actually change the flow of time in this manner; if you do, just let me know, and I, just for you, will install two light sources on both sides of me, then I’ll move by my friend Greg, sitting on that stupid square, one more time. However you think about it, it turns out that my time is both: slower and faster than Greg’s, from Greg’s point of view. And before you start criticizing Greg’s point of view, remember that he lives in a free country (I’m not gonna tell you which country it is though) and has the right for his own point of view protected by that country’s constitution. And, as a matter of fact, my time will be both faster and slower than Greg’s from any point of view, if we properly apply this logic, but I really don’t want to rat-hole on this now.

So, in summary, we discovered that the Einstein’s relativity theory leads to the following inequality: t2 < t1 < t2, which you can use to instantly freak out any mathematician you don’t particularly like. And note, that, unlike the tween paradox, you can’t speculate that my direction and/or speed have changed during the experiment.

As much as I admire my newly discovered inequality, I like the equality: t2=t1=t2 (don’t ask me why I wrote t2 twice) better, mostly because it is, actually, possible. I think, if we are able to compare our watches without breaking that uniform relative motion, say: by bending the space or something, our watches would show the same time, unless these are bad, low quality watches, or the batteries are old, or we hadn’t synchronize them before the experiment, or hundreds of other possible reasons with the exception of one: time dilation.

APPLY THE SAME LOGIC AT WILL, IT”S FREE

You can (or, at least I can) use similar logic to show contradictions in any other illustration of the relativity theory. As an example, let’s pick another quite popular one. It goes like this: suppose that the light source (A) is attached to the moving platform, like before, but this time, the light is emitted upwards (perpendicular to the motion of the platform), reflected from the mirror (B) back to the light source. Sorry for a less entertaining picture, I got lazy this time. Just imagine me sitting there next to the little triangle and scratching my head. If this doesn’t work for you, let me know and I’ll draw you a pretty picture and decorate it with little red roses.

IFR, on the pictures, stands for: Inertial Frame of Reference. I am in IFR-1 and Greg is in IFR-2, but if it confuses you in any way, just ignore IFRs altogether, I’ll call it: “my world” and “Greg’s world” for your enjoyment.

LTTT_2_Pic1-1However, because the platform is moving, imaginary Greg, will see something like this:

LTTT_2_Pic1-2

The relativistic line of thought is quite similar to the previous example: since, from Greg’s point of view, the light travels longer distance, but the speed of light is the same from both: my and Greg’s perspective, the time must be flowing slower in my world, than in Greg’s world, again, from Greg’s point of view… Wouldn’t it be better if he hadn’t any point of view at all? For that matter: the only point of view I really care about is mine. But I digress.

OK, now, let’s destroy this fragile logic with the power of my counter-example: suppose there is one more light source on the platform, which emits light at an angle, equal to the angle C in the picture above. You should have guessed the outcome by now: for me and Greg, the light trajectories will look like on the picture below, respectively.

LTTT_2_Pic2Now, the roles have changed and the beam travels shorter distance for me than for Greg. This, according to relativity addicts, would imply that the time is faster in my world, and we’re back to the same paradox, namely that time in my world may be, at the same time, slower and faster, than in Greg’s world.

So, you would ask: if there is no relativity, how would the light behave in the presence of a propagation medium like ether (we agreed to call that medium ether or aether for now, but you may call it whatever you want: photon field, Higgs field, dark matter, I don’t care)? Well, in that case, the light will propagate with the speed of light (no pan intended) relative to the ether and so Gerg will see something like this:LTTT_2_Pic3

Let’s remember this prediction of mine: we may get back to it in one of my future posts that will discuss an alternative to  M&M’s Experiment approach to more definitively answer the question about existence of ether. Which reminds me: in the next post, I’ll provide my explanation of the results observed by M&M. Until then, I do appreciate any constructive feedback accompanied by scientifically valid argumentation.

Check out my next post: Listen to The Thunder (Part 3).

Listen to The Thunder (Part 1)

When you’re dropping rocks in the pool, you should watch the circles on the water, otherwise, you’re just wasting your time.

Kozma Prutkov

PREFACE

This post is 40 years overdue, that’s how long it took me to find courage and write about physics, in other words: about things I’m not supposed to understand (being a software engineer). And perhaps I don’t, but I’m still in a blissful ignorance about that. I guess it’s about time for somebody (preferably a physicist), tell me off and point me to my rightful place in an office cubicle (I’m kidding: I have a personal office) and, at least 100 miles away from the nearest telescope.

It’s not like they didn’t try before: I shared my amateurish thoughts with several Physics PhD dudes, hoping for an instant revelation of my stupidity, but, regretfully, most of the time their telling me off sounded something like: “There must be an explanation, but I don’t remember it now, go read this”. I read this, and I read that, and more I read, stronger was my feeling that those who may be able to point me to my mistakes are locked somewhere in a government secret facility and are banned from communicating with the outside world. Hopefully, these several posts will reveal the last few who are still at large (just doing my duty: helping government to get the bastards 🙂 ).

Of course, the other possibility is that I’m right, however impossible it may sound, which means that lots of theories developed after the famous (or, perhaps, infamous) Michelson–Morley experiment will need to be revised.

OK, I know what you think: “Oh please, not again: not another anti-relativity freak. M&M (that’s how I want to call Michelson and Morley, hopefully, I don’t infringe on any trademarks here) experiment has been verified million times already, there are experiments that clearly demonstrated the evidence of the time dilation (I’ll explain what it is later), everything seems to fit so nicely into the framework, give us finally a brake, will you?”. Well, I’m not so sure about: “nicely fit” aspect of it, but, essentially, you would be right: I am going to, among other things, deal with Special Theory of Relativity (you’ll see me calling it “the theory” “relativity”, “Einstein’s theory” and bunch of other things, hopefully you’ll know what I’m talking about ; if not: give me a call), but I’ll first present the history and the gist of it (that’s what this first post will be about), and then, in future posts I promise to address all your concerns, namely: why I think that the relativity theory can’t be valid, why the M&M and similar experiments produced “unexpected” results, why the “evidence of time dilation” has nothing to do with time dilation, and, depending on how long I can keep writing, some other aspects of scientific speculation.

What I’m NOT going to do is: explain why it is called “Listen to Thunder” pretending there is some mystery in it; at least, not in this first post.

We’ll start looking into Einstein’s Special Theory of Relativity (there is also a General Theory of Relativity, which is even weirder, but somehow makes a bit more sense than special one. We may or may not address it later.), but before explaining the theory itself, let’s first understand why would anybody come up with the weird ideas like: when I move relative to my friend Greg, to him my watch ticks slower than his, but, what’s even weirder: to me, Greg’s time clicks slower than mine, and, according to scientists, there is no contradiction (aka: twin paradox), since there is no way to verify that. Actually, they say, that if we meet again to compare our watches, we may not see any difference, because, in order to meet again, we would need to change the direction and speed and then: gotcha! we broke the rule of being a so-called: Inertial Frame of Reference (in simpler terms: moving with a uniform speed, in a straight line), and so: “Nah-nah-nah-nah: you can’t prove there is any contradiction”. I wonder, what will be the “scientific” explanation if we manage to bend the space (perfectly possible as an inference from the generalization of the same theory) and meet while still moving in the same speed and direction…

Sure, let’s go with that, but wait… how about that evidence for time dilation when atomic clocks from fast moving airplanes were compared and the time difference was “just as the relativity theory has predicted”? It’s easy to show that whatever the movements and speed of dude A is relative to dude B, exactly the same movements and speed (though in opposite direction) would be of dude B relative to A. I do have a better explanation for the time difference they observed, but we’ll save it for later. Right now, let’s talk about the time when the world was much simpler place and time, distance and mass didn’t depend on speed or gravity.

SOME HISTORY

I must note here, that, any decent, self-respecting scientist, would never use a layman words like: “speed” in a serious paper. A failure to use the only proper scientific term: “velocity” could get you forever banished from the scientific society. But, since what I’m writing here can’t be considered a serious scientific paper, and I’m definitely not a decent, self-respecting scientists by any measure, and, after this post, I will, of course, be banished from scientific society anyway, I’ll just completely disregard all this formality and, in general, do whatever I want here.

But I digress… Where were we? Oh yes: good old times. By the last decade of 19th century, the world was totally awesome. Everything made sense and people were reasonable. Nobody rushed anywhere and everybody had plenty of time. Well, with the exception of the factory workers who worked 16 hours a day, but they should blame themselves: they should have learned to add and subtract numbers and become scientists. So, where was I? Oh, yeah: that was the golden age for scientists. First of all, in most places they weren’t burned at stake for their ideas anymore, and they didn’t have spreadsheets or calculators. Stress at work was like: “here, you need to add these 100 numbers together, remember we’re on tight schedule and I need the answer in three months max, can’t wait any longer than that. If you can’t do that you should tell me now.” That would generally leave some time for peaceful contemplation.

The scientific research was about to end: everything was known, all laws of nature were discovered and the scientists were finishing the last chapter in the book of science. Well there were like couple of exceptions, some minor things, which were also known, just needed a bit more evidence. Like this one called: luminiferous aether. You see, the visible light, was behaving exactly like any other known wave, such as, for example sound waves or waves on the surface of water. The waves propagate through media: for sound it’s the matter, pretty much any matter which has those atoms and molecules in it. The sound source pushes some molecules, which, in turn. push nearby molecules, which push their neighbors, etc, until all these pushing around reaches your ear and pushes a sensitive membrane there which your brain interprets as sound.

Water waves need water, gravity and somebody like me who loves throwing rocks into the water. Well, pretty much anything that pushes the water, would work. With water, the pushing around is very much like with sound, but it happens mostly in vertical direction. If you push down at water (you can safely try this at home), the displaced water will displace water around it, which will go up, then pulled down by the gravity, displacing more water around it, etc.

Since 17th century, scientists were finding more and more properties of light, which were so similar to other waves, so, scientists very much agreed that light is a wave too. Now, all waves need a propagation media, in other words: particles that push or pull each other in some way, and so it was concluded that the entire universe is filled with substance scientists call luminiferous aether, and I’m going to call it just ether to save you from the pain of mentally pronouncing: “luminiferous” every time (but, in truth, saving myself from the pain of copy/pasting it over and over again).

And so, in 1887,  Albert A. Michelson and Edward W. Morley (M&M, remember?) conducted an experiment to find the evidence for the ether. Their logic went like this: since the earth is moving through the space (read: ether) at a high speed, and the speed of light is constant relative to the ether, then, relative to earth, the light should go with the speed adjusted by the speed of earth relative to ether. For example: if the beam of light is send opposite to the earth’s movement, it’s speed relative to earth would be faster than if the beam were traveling in the same direction with earth. It’s like you’re riding a train and see a bird flying outside; if it flies in the opposite direction (which, by the way rarely happens: those birds seem to always chose to fly with the train and at the same speed, perhaps hoping to get food or something), it would seem to go by so fast you’d hardly notice, whereas, if they fly with the train, you may be enjoying bird’s company for a while. Of course, for best analogy we should have assumed that the train moves a bit faster (or slower) than the bird, which rarely happens, so, I guess my example sucks in that way, but you get the point, right?

In reality, of course the direction and the speed of the earth is a bit tricky subject. Consider this:

  1. If you’re standing at the equator, your speed due to earth’s rotation is about: 1000 miles per hour
  2. Earth’s moving around the sun with the approximate speed of: 67,000 m/h
  3. With solar system, around the galaxy: ~490,000 m/h
  4. Galaxy moves towards something scientists call: “Great Attractor” (dunno what it is, and it doesn’t matter…) with the speed of about: 2,227,273 m/h

M&M didn’t really know all of that (I mean: they knew some of that, but not ALL of that), and they didn’t care either. They built a contraption, which basically split a beam of light into two beams, and redirected them in a way that they traveled perpendicular to each other (if you don’t know what ‘perpendicular’ means, stop reading right now: the cows need to be milked and the football game is about to start). They made it such, that they could rotate the device whenever they want and make measurements in any and all orientations of the device, and so they believed that they had to observe some difference in the speed of these light beams in, at least, some positions of the device… Actually, that thing they built was floating in a pool filled with mercury for smooth rotation. I always wandered if either of M’s suffered from Mercury poisonous vapors afterwards, but never cared to confirm…

Sufficient to say that, if they would find the evidence of the ether, the Special Theory of Relativity wouldn’t exist and I wouldn’t spend time right now in the search of words to describe it. But, whatever they did, the difference they were looking for was much smaller than what their calculations have predicted.

M&M really freaked out, texted all their friends and family, posted results on the Facebook and received few thousand ‘likes’ in the matter of hours. Scientific community scratched their heads trying to find a good explanation. But no matter what theory they would come up with, it didn’t explain all the known observations, that is: up until Einstein came up with his relativity thing.

So, to summarize: light moves through ether and by ether. However, regardless of the speed with which the light source and the observer move through the ether, the time it takes for the light to reach the observer doesn’t change, it’s like the ether moves with the earth, which is, by the way, one very popular theory (called: drag hypothesis) attempting to explain the M&M results. We’ll come back to it later. For now, let’s just say that, there were some observations which didn’t seat well with the drag theory, and so the supporters of the hypothesis had to eventually shut up.

EINSTEIN AND HIS GREAT ENTRANCE

Then there comes that Einstein guy and says: there is no ether. And, if there is no ether, how do you know if earth is moving? Maybe earth is still, and the rest of the universe is moving around us and in all other directions I listed above? Hmm… isn’t that what everyone was saying before Galileo came along with his rotating earth nonsense? OK, let’s not get carried away here: Einstein didn’t say Galileo was wrong, as a matter of fact he employed Galileo’s principal of relativity to explain the behavior of light observed by M&M.

Here’s the gist of what Galileo was saying about relativity: suppose you’re in a train, which moves with constant speed and in a straight line (something he called: Inertial Frame of Reference, or IFR). And, just to make it more illustrative, suppose the windows are closed and you can’t see outside. Galileo claims, that there is no way you can determine if you’re moving or standing still: everything within the room will behave exactly the same as if you were not moving relative to the earth. Now, even, if you open the windows, you may think the world is moving and not you. Einstein claimed that the light is no different: in any IFR (let’s call it a train or a moving platform, I don’t want to freak you out) it behaves like the train is not moving… But here’s the catch: in Galileo’s world, whatever was happening in that train we mentioned, from outside world would look quite different, than from the seat in the business class attached to the train (now, let’s assume the train is made of transparent glass and, outsiders can see what’s going on inside… Why don’t we make trains like that really?  Wouldn’t it be cool? And imagine how much our kids could learn about physics? OK, I suppose not, but it’ll still be cool). Where was I? Oh yes: looking from outside, everything that moves inside our transparent train will move with the speed, which is the sum of the train’s speed and its speed relative to the train. With light, it’s quite different though: it’s been observed before that the light emitted from a moving object has the same speed as from stationary object (all of this relative to a stationary observer, which is a relative notion by itself, blah, blah, blah… I’m not going to explain all of this using mathematically precise “scientific” language, or I may bore you to death, if I haven’t done it yet…). Moreover, according to Einstein’s theory, the speed of light relative to any IFR (grrr.. can’t avoid it, can I?) is the same and nothing in the universe can move faster than the light in vacuum. That created rather paradoxical situation, which I decided to explain with an example (it’s my blog, I do whatever I want here, ok?).

OK, suppose there are: my friend Greg and I, and I’m sitting on a moving platform. To keep things simple, just assume for now that, in my examples, whenever I say anything about motion or lack of it, it’s all relative to the earth. This just to calm down all those pedantic “precise language” maniacs…

Anyway, here we are on the picture (I’m in dark blue overalls):

LTTT_Pic1

Aren’t we cute? I think Greg has no sense of fashion: all these tasteless colors, you know… And that cube with the pretentious letter “G”, like he couldn’t just write his name. Sometimes, he just drives me crazy!

Yes, about the light. Suppose that light on the moving platform, when it turns on, it is at the equal distance (oversimplification: the relativity would make the distances and things happening “at the same time” also speed-dependent, but this doesn’t change the essence of the illustration and conclusions) from each of us, like on that picture above, but I’m moving, while Greg is not. Now, according to Einstein, the light will reach me in the same time, as if the platform wasn’t moving at all, however, from Greg’s point of view the light reaches him before it reaches me, since while the light was traveling from that lantern to him, I have already moved a bit further, like on this picture:

LTTT_Pic2

Now, as I mentioned above, it was known that the speed of light is the same whether it is emitted from a moving or stationary source (just the frequency changes, also known as Doppler Effect), which means that, to Greg, the light reaches him in the same time as, to me, it reaches me.

OK, this is the most important part, so I’ll say it again: if I had a super-precise watch and had some magical way of timing the time it takes the light to reach me after the lantern goes on, it would take the light some time, let’s call it: “t1” (also known as: d1/C, where ‘C’ is the speed of light, but it’s unimportant). If Gerg measures the time light takes to reach him in the same way using some magic and his super-precise watch, his measurement will, according to Einstein, show the exact same time: “t1”.

Now, Einstein got all excited and also posted his ideas on the Facebook, which caused some of his more intelligent friends and fans to think he’s lost his marbles, and few more inquisitive ones replied to Einsteins post saying something along the lines: “No ether? Fine, good riddance, but great Einstein, aren’t you missing the fact that to the moving guy (that’s what they were calling me in those times: “the moving guy”), the light actually travels a longer distance (d2), if it reaches him in the same time, are you suggesting that the light travels faster than the speed of light?” Einstein, scratched his head for few minutes, but he wasn’t the guy to be defeated that easily, his next post went something like this: “no, the speed of light is the same, but the TIME for the moving guy flows slower…” So, in other words: while for me (the moving guy, remember?) it took light t1 to reach me, from Greg’s point of view, it took a bit longer: d2/C, to be more precise. Let’ call that t2.

Cool right? And a great name for the phenomena: “time dilation”, wouldn’t hurt either. Well, it would be cool, if it hadn’t introduced worse problems than it was intended to solve. But, I’ll talk about those in my next post on this topic.