Black holes
Inside horizon
Radius in a Black Hole?
Radius projected into flat space
3 points of view
Infinite redshift
From fixed radii from singularity
Exceed the speed of light?
Time and distance swap places in metric
How would time pass?
From free fall
From horizon to crunch
Spacetime is flat
Always observe speed of light to be c
No messages can get out
Tidal forces can hurt
Black Holes can evaporate!
The process
Evaporation is very slow
Rotating Black Holes
Spacetime gets dragged
2 event horizons
Spacetime becomes unstable
Ripped apart!
