ah - of course. The recession due to spacetime expansion is not a relitavistic speed as I was imagining it. This makes sense.
I'd be interested if someone has an answer to the black hole question though. It was mentioned that they may be creating 'mini black holes' in the soon to be online...
you didn't read my question properly. I was asking whether general relativity provides that at some point approaching the speed of light the mass an object relative to an observer must reach the point where photons reflected from its surface can no longer escape its mass, causing it to appear to...
Hello,
I have a question concerning general relativity. (go easy - I have only knowledge from general consumption physics books). Something curious I have been thinking about requires an explanation as to where I am incorrect in my thinking:
My understanding is that, as something moves...