28 ms·
Density is mass divided by volume. Volume of BH is defined by event horizon. Singularity is a result of applying a theory of relativity in a case where we know
by zycon 3y ago
Density is mass divided by volume. Volume of BH is defined by event horizon.
Singularity is a result of applying a theory of relativity in a case where we know relativity doesn't work, so it's unlikely it's real.
- codethief 3y ago> Volume of BH is defined by event horizon. The event horizon is a three-dimensional null hypersurface, though, encompassing a four-dimensional spacetime "volume". You are probably referring to the two-dimensional apparent horizon, which depends on the spatial slicing.