![]() Theorists of earlier decades viewed them skeptically. We find that a singularity in the gravitational field corresponds to a singularity in the structure of space and time itself.īlack holes tend nowadays to be accepted as a routine part of physical theory. Now add the idea brought by general relativity that gravity goes with a curvature of spacetime. So far we only have a singular gravitational field. ![]() This means that fully collapsed bodies that don't allow light to escape are already possible in Newtonian theory. So once gravitational collapse starts, its gets harder and harder to stop. They depend on a potentially catastrophic instability that resides merely in the fact that masses attract gravitationally and attract more strongly the closer together they are. Yet their origins lie firmly in classical, Newtonian physics. We tend to associate black holes with Einstein's general theory of relativity. John Wheeler with Hideki Yukawa and Einstein And they can supply bridges to new universes They incorporate singularities in spacetime structure: points where Einstein's theory breaks down, since the curvature of spacetime becomes infinite. Hence John Wheeler called them "black holes." There is more. They are a region of space where the gravitational pull is so strong that nothing- notĮven light-can escape. They form when matter collapses gravitationally onto itself, such as when massive stars burn out. The Basic Idea Black holes are some of the most interesting pathologies in space and time delivered by Einstein's general theory of relativity. ![]()
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