Recent content by fuentes1979

What do you mean PeroK? I guess it is a quite common error isn’t it? 😩

Now I understand. I was just mixing things. Thank you very much for your very clear explanation. The main point I was missing was relativity of simultaneity.

Thanks Orodruin and Ibix for your responses. As for Orodruin reply, I cannot see the difference between, using your words “the time elapsed on the clock of a moving observer relative to the coordinate time of a frame…” and the situations where (1) time of the event “the light beam arrives to...

Hello everyone, I would be thankful ir someone explained where I am mistaken in this reasoning on Einstein’s mental experiment on Special Relativity. Taking the railway as K reference frame, a light beam is thrown in the x positive direction the moment the train passes in the same positive...