# Proving The Black Hole Theory

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The theory of Black Holes and its process is one of the most unique studies of the universe, in that with each discovery made, we un-lock closed doors to knowledge of how the universe was made. In 1798 a French Mathematician Pierre Simon de Laplace came up with the first theory of a Black Hole. He agreed with Newton, that when enough mass is added to a star like the sun, the gravitational pull would become so great that the escape velocity would equal the speed of light. Therefore, the star would blink out and become an invisible star. More than a century later, Einstein, came up with the theory of relativity. It states that nothing can travel faster than the speed of light, therefore, no matter can escape it. (O.N.L. 47-56) Karl Schwarzschild, in 1917 used Einstein theory to calculate that if a star of a curtain mass was to shrink pasted the critical point it would become a Black Hole. The theory is named in his honor, the Schwarzschild radius. When stars begin to collapse, it depends on how big the star is and how much it collapses on itself. For a star whose mass is less than about 1.2 times the mass of the sun, the subsequent contraction does not become a violent collapse. Although the star can no longer support itself by thermal pressure, as gravity pulls it even father inwards the star discovers a new source of pressure: electrons in the star’s atoms are being compressed more and more tightly together, and they resist such compression, even at low temperatures. Consequently the thermal pressure is gradually replaced by electrons degeneracy pressure, which eventually become sufficient to halt the star’s contraction and which eventually supports it completely against the inward pull of gravity (Hawking 7). The star is now essentially dead. It continues to shine weakly for a few billion years, gradually losing all heat. Astronomers continue to see it during