Visualize a Black Hole at the Event Horizon
This cute little animation shows the causal structure around a classical black hole in an interesting way. The perspective is that of a body orbiting just outside the event horizon:
Animation credit: Robert Nemiroff.
Nemiroff’s paper discussing this kind of visualization is available on ArXiv.org.
For more animations of spacetimes with screwy causal structures, visit Virtual Trips to Black Holes & Neutron Stars.
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Now, if only someone would do Goedel spacetime!
I assume the image pictured is for Schwarzschild spacetime? Or something similar?