Recent content by Razola

Thank you for your answers. The problem is I didn't have any knowledge about GR but I have some idea about what it is. I think I understood something from you both. Is this correct?: - SR is like the first term of the Taylor Polynomial. It is applicable for an homgeneous spacetime without...

Hi! I am new here.

I didn't study general relativity, only the Lorentz Transformations and I think I've got it. Why doesn't make sense to "measure" from the Earth the tick tack of a clock located in a very far Galaxy and to measure the distance as well? I understand "measure" doesn't mean I am going to see the...

My question is following: Is there another Galaxy in the Universe that has a relative speed to the Milky Way of 0.999c (near of light speed)? The implication of that is that our life 'observed' by extraterrestrial beings in that Galaxy might be millions of years, an eternity! This is because of...