Let me restate that, to emphasize what I think is really weird: A solar mass or two that is inside the event horizon got converted to energy and radiated outside the event horizon.
E=mc^2. That part doesn't bother me. It's the "inside the event horizon" to "outside the event horizon" part that bothers me. Can someone ELI5 how that is possible? (Or even ELI20 with an undergrad in physics.)
sageserpent•1h ago
I am oversimplifying, and treating the black hole as already collapsed inside the event horizon from the point of view of somebody well away from it; that’s not accurate. Perhaps thinking of that mass as being ‘just about to collapse into the event horizon’ is the best way to think about it, because that’s what that somebody would perceived from the outside who is not in free-fall into it.
Need a proper physicist to follow up on this, my training stopped at special relativity and Newtonian gravity…
(PS: studying tensor calculus and general relativity is on my bucket list - thanks for reminding me to get a move on with it!)
krapp•28m ago
https://en.wikipedia.org/wiki/Hawking_radiation