Question

Who read Feyman Lecture books?

Answer 1

I have, why?

Answer 2

I am reading the special relativity part, trying to understand his explanation about clock getting slower

Answer 3

He should a meter stick with two mirrors at each ends at a clock

Answer 4

*uses , not should

Answer 5

Okay, so what's the question?

Answer 6

so the clock works by boucing light ray back and fourth against each mirror. But one of these clock is taken to a space ship, it bounces slower?

Answer 7

The light travels at the same speed but if the whole apparatus was moving up, lets say, then in the finite amount of time that it takes for the light to travel from the first mirror to the second, the second mirror would actually move away. Likewise, on the return trip, the mirror would move towards the oncoming light pulse and so the time for the total trip would change.

Answer 8

That's usually how you derive length contraction. Is the setup like that or like this: