A new way to Confirm Hawking's Idea That Black Holes Give off Radiation: by BrianKoberlein
Nothing can escape a black hole. General relativity is very clear on this point. Cross a black hole’s event horizon, and you are forever lost to the universe. Except that’s not entirely true. It’s true according to Einstein’s theory, but general relativity is a classical model. It doesn’t take into account the quantum aspects of nature. For that, you’d need a quantum theory of gravity, which we don’t have.
So black holes can emit faint energy thanks to Hawking radiation. What’s interesting about this is that the effects connect black holes to thermodynamics. Since black holes emit some light, they, therefore, have a temperature. From this simple fact, physicists have developed theHow simulated black holes might be studied. Credit: Anthony Brady, University of Arizona
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