robinson wrote: ↑Tue Oct 13, 2020 7:45 am
The real puzzle is when you realize the lab can be the stationary object and the observer is moving. And the math is exactly the same.

This is a basic part of the theory. Since there is no way to actually say, or know, who is moving or at rest, (everyone is actually), and the idealized rest state or observer location is a fiction, used to do maths, it doesn't matter which you say is moving.

The math is the same.

The perceived motion of the lab, (with the mirrors, the light, the time and distance), it is all dependant on the observer. And it doesn't matter if the lab is "stationary" and the observe is moving, the calculations are the same.

robinson wrote: ↑Tue Oct 13, 2020 7:45 am
The real puzzle is when you realize the lab can be the stationary object and the observer is moving. And the math is exactly the same.

This is a basic part of the theory. Since there is no way to actually say, or know, who is moving or at rest, (everyone is actually), and the idealized rest state or observer location is a fiction, used to do maths, it doesn't matter which you say is moving.

The math is the same.

The perceived motion of the lab, (with the mirrors, the light, the time and distance), it is all dependant on the observer. And it doesn't matter if the lab is "stationary" and the observe is moving, the calculations are the same.

You already wrote that, twice, and I still don't disagree,

Yet no math. Prove your claim that it is "exactly the same" or admit that you're unable to do it.

The observer in the moving lab sees the exact same thing if the stationary observer also has mirrors and a light, and the moving lab is measuring the distance looking at the unmoving observer

Does an observer in the lab see clocks running slower for the non moving observer! There is another light mirror set up where the non moving observer is

What does the lab observer see? The non moving observer appears to be moving

I’ve read Einstein and a lot of works on his theories, the reciprocal math is a fundamental thing, that is called In physics, the principle of relativity. It is the requirement that the equations describing the laws of physics have the same form in all admissible frames of reference.

I say the math used to calculate is the same for both frames of reference, in this puzzle.