Kip Thorne's Hoop Conjecture was a precursor to the existence of this entity, which has its artificial singularity removed in Kruskal-Szerekes coordinates.
Kip Thorne's Hoop Conjecture was a precursor to the existence of this entity, which has its artificial singularity removed in Kruskal-Szerekes coordinates. The photon sphere exists at 1.5 times this quantity for non-rotating entities. In the general relativistic derivation of this quantity, its namesake's solution to (*) the Einstein Field equations becomes infinite at this value. This quantity can be derived by taking the expression for the escape velocity from a mass and setting it equal to the speed of light. Equal to two G M over c squared, this is, for 10 points, what length that a mass must be compressed inside in order to become a black hole?
Kip Thorne's Hoop Conjecture was a precursor to the existence of this entity, which has its artificial singularity removed in Kruskal-Szerekes coordinates.
Schwarzschild Radius