EINSTIEN AND THE REPREHENSIBLE IDEA - Abdelkader Benzian - Bog

Any physical object whose radius R becomes less than or equal to the radius of Schwarzschild will undergo a gravitational collapse and become a black hole where light cannot escape from gravitational fields, this one represents a solution of the Einstien equation, introduced by Schwarzschild, it contains two singularities, one describes the center, and the other describes what is called the horizon of events; black hole and its singularities cannot be considered as Einsteinian¿s pacetimes in any classical sense. Then a new theory of gravitation must be constructed to represent them.