From an outsider's perspective, you would see an object approach and then freeze. It would red-shift dimmer until it disappeared. From an in-falling perspective, I don't think you'd notice anything at all.
hotdaniel
joined 1 year ago
I see. Thank you. So, you can use light to infer the mass, and then the volume information to infer the spin? Easy enough.
Well.... does it? If all the stuff falls in and only the volume remains, who could say that it's spinning? How could you detect it?
Does the black hole spin? Or does the stuff outside the black hole spin? 🤔
I just disabled ghostery ad-block and that seems to work. Still have ublock going.