I How Does Special Relativity Affect Perceived Distances Between Planets?

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Special relativity introduces complexities in measuring distances between moving observers, as demonstrated by the scenario involving Tom and Mary. When Mary travels at 0.8c towards Tom, she perceives Tom as being 2.4 light years away at a specific moment, while Tom measures her to be 4 light years away in his rest frame. The relativity of simultaneity means that "now" differs for each observer, complicating their measurements of distance and time. Both observers experience time dilation, affecting their perceptions of how long it takes to meet each other. Understanding these differences is crucial for grasping the implications of special relativity on distance perception.
  • #101
PeterDonis said:
Unfortunately, the answers it gave you do not appear to be good ones.This is unfortunately a fairly common pop science viewpoint, but it doens't work. You will not find it in any actual textbooks or peer-reviewed papers, and you should not be using it.
Do you have any better recommendations? Everything is moving in speed of light is not in that book. It is what I think. Unless I find better explanation, inevitably I am trying to make sense myself.
 
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  • #102
dwspacetime said:
Everything is moving in speed of light is not in that book. It is what I think.
Ah, ok. Then I withdraw my comment about the book; my comment only applies to what you think.

dwspacetime said:
Do you have any better recommendations?
Yes: learn SR properly from a good textbook, such as Taylor & Wheeler's Spacetime Physics.

dwspacetime said:
Unless I find better explanation
You have already been given better explanations right here in this thread, but apparently they didn't take; instead of listening to them and discarding your own wrong understanding, you are questioning them. So now we're to the point of telling you to go learn properly from a textbook. We can only do so much here; if you're not going to listen to the answers you get here to your questions, from people who know a lot more about the subject than you do, continuing the discussion is pointless.

This thread is now closed.
 
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