What is the extent of gravitational lensing? i mean, if every single star, black hole, galaxy ect is lensing light in all directions it would surely make the true nature/structure of the universe far different than is observable, right? we could be seeing the same object in two completely...
Ok, i am not beginning to understand, i am completely confused.
could you tell me the formula that is used to calculate the relative speeds of the objects in this scenario?
cheers for the help!
i think I am beginning to understand, though it is quite hard to comprehend. Does light, always only move at c in accordance to a centralised reference frame (the frame of Y, the source of the whole system) i.e the reference frames of both X & Z are irrelevant, and moving...
Hello, I am really curious about special relativity but don't have a strong background in maths or theoretical physics. would be very greatful if you could help me with this scenario;
XYZ are objects in space
Y explodes violently, sending X and Z away from Y in opposite directions at C / 2...