steve_bank
Diabetic retinopathy and poor eyesight. Typos ...
Sounds like the philosophical musings of AE.I don't know how this proves what you think it does. They would see the lightning either simultaneously or sequentially depending on their frame of reference. Time dilation and length contraction are theories that try to explain the reasons behind this. Time is a measurement of change. It is not a dimension. Someone on the train and someone on the ground saw the lightning strike differently because one was in a stationary position, and one was in a moving position. I don't know where this disproves seeing in real time. That being said, I'm not getting into astronomy and physics because that's not where this claim came from. It's important to see if his demonstration is valid, yet no one cares to give his observations a serious look. This whole discussion has gone in a direction I'm uncomfortable with because, like I said, I'm not an astronomer and I cannot prove he was right coming from this angle. I can only share what he observed in order to determine if his observations carried any weight. If people can't even read his work because they have already made up their minds he is wrong, then we're at a dead end.The speed of light is finite, but the same as measured in all reference frames. This has the following consequence. A train is speeding by. Person A is seated in the middle of the train, equidistant from the back and front of it. Person B is on the embankment. When the train arrives at a point where Person A, on the train, and Person B, on the ground, are facing each other, Person B sees lightning flashes striking the front and back of the train simultaneously.
What does Person A, on the train, see?
An object on the train, such as a ball rolling in the direction of the train’s motion, will add the train’s motion to its own motion. It’s called Galilean additivity. But light doesn’t do that. Because it does not add the train’s motion to its own, it follows that the person on the train will see the lightning flash at the front of the train first, and then sometime later the flash at the back.
So Person A and Person B disagree on when the flashes occur. Person A, on the train, thinks the occur sequentially. Person B thinks they occur simultaneously. Who is actually right? They both are. This phenomenon, the relativity of simultaneity, also accounts for time dilation and length contraction.
This is Einstein’s special theory of relativity in a nutshell. It has been tested and verified innumerable different ways over the last 120 years.
This phenomenon is ONLY possible because of delayed-time seeing. If Person A and Person B saw light instantly, they would never disagree on when the lightning flashes struck the train. So we know that what the author claims has no connection to reality.
But this has been explained to you.
What Did Einstein Mean By Time is an Illusion?
When you think about it, time is an arbitrary construct — it's our way of making sense of growing up and growing old. It's only a stubborn illusion that helps make sense of the world.interestingengineering.com
Here is his short book by AE on his theories. Time and light are essential parts of it. He had a gft for reducing complex to simple terms.
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www.marxists.org
Preface
(December, 1916)
The present book is intended, as far as possible, to give an exact insight into the theory of
Relativity to those readers who, from a general scientific and philosophical point of view,
are interested in the theory, but who are not conversant with the mathematical apparatus of
theoretical physics. The work presumes a standard of education corresponding to that of a
university matriculation examination, and, despite the shortness of the book, a fair amount
of patience and force of will on the part of the reader. The author has spared himself no
pains in his endeavour to present the main ideas in the simplest and most intelligible form,
and on the whole, in the sequence and connection in which they actually originated. In the
interest of clearness, it appeared to me inevitable that I should repeat myself frequently,
without paying the slightest attention to the elegance of the presentation. I adhered
scrupulously to the precept of that brilliant theoretical physicist L. Boltzmann, according to
whom matters of elegance ought to be left to the tailor and to the cobbler. I make no
pretence of having withheld from the reader difficulties which are inherent to the subject.
On the other hand, I have purposely treated the empirical physical foundations of the theory
in a "step-motherly" fashion, so that readers unfamiliar with physics may not feel like the
wanderer who was unable to see the forest for the trees. May the book bring some one a few
happy hours of suggestive thought!
December, 1916
A. EINSTEIN