Gprime5 t1_irl6jjr wrote on October 9, 2022 at 2:36 AM Reply to comment by kuriteru in Can an object that’s not a black hole be so dense or massive that it has an event horizon? by ExactCollege3 You don't really need the density either. If you had enough air at standard Earth atmospheric density, then that would create a black hole. The calculation works out that 3.8 Billion kg of air at standard Earth density will form a black hole. Permalink Parent 3
Gprime5 t1_irl6jjr wrote
Reply to comment by kuriteru in Can an object that’s not a black hole be so dense or massive that it has an event horizon? by ExactCollege3
You don't really need the density either.
If you had enough air at standard Earth atmospheric density, then that would create a black hole.
The calculation works out that 3.8 Billion kg of air at standard Earth density will form a black hole.