Hey folks, i am an S1 student in Scotland ( it should be 7th grade for the usa ).
I've been asked to write a 6 pages essay about General Relativity and it's implications.
First, i looked some documentaries on Youtube to understand better how space is connected to time and how both are not absolute as newton described. I think i understood what Albert is trying to say pretty good now.
What i don't get is how is it possible that gravity bends space-time, is it the matter that bends it ? or the relation of the mass and the space-time, like in the classic view of gravity ? or does spacetime alone "do the job"?.
One last thing i don't really understand in General Relativity is that gravity "seems not to exist", like it is not something defined as a force or a photon. So does gravity exist in Einstein ideas?
(Also, but this is for my curiosity: why is it called "the fabric" of space-time ?)
Excuse me for the many questions, but i find this theory really really hard to understand even if physics is my favourite subject right now.