There is a limit on the amount of the universe we can see. Since the universe is theorised to have started with the big bang. Therefore, if we look out far enough, shouldn't we be able to see only half a galaxy at the boundary of the visible universe? Would we only be able detect this at some point in our future when the galaxy starts to become visible to us? Due to the vast distances between galaxies.
Well this is not the question you might think it is. If a spacecraft is falling freely towards a gravitating body, and then starts accelerating towards the body, would an accelerometer show the acceleration?
I have not seen anything about this online. I would say it would. Is there any observational evidence anyone can point to? Have you tried this personally?
The earth is in free fall around the sun but at the same time accelerating. Einstein said we shouldn't be able to distinguish free fall from inertial motion. So could we detect the emission of electromagnetic radiation from the earth accelerating through the sun's EM field or not?
OK, a bit of a tabloid headline title. On to the crux. If we continually entangled photon pairs, sending one into a black hole and the other to a detector, would we be solving the information paradox? Or just wasting our time?
If the gravitational field were not inverse square in nature, but had the same potential at every point, would this plot as a cone? I have been thinking about light cones. Which is why I am asking such a strange question.