Comment on Stupid questions thread, October 2015

Mon, 19 Oct 2015 03:46:39 GMT

As far as I am aware, black hole surface gravity is analogous to temperature and surface area is analogous to entropy when you start digging into their thermodynamics. Dumping waste thermal radiation in will make them bigger and they will eventually re-radiate thermal radiation via the Hawking mechanism in the far future.

Black holes have negative specific heat, i.e., dumping energy into them makes them larger, hence colder. In particular, a black hole whose temperature is colder then the microwave background will just keep absorbing energy, and hence get even colder.

Discuss