Hello All, I have been trying to understand the exact contribution of our legendary physicist, Dr.Hawking and found that Hawking radiation is amongst one. Is it that Hawking radiation is the first attempt to unify, general relativity, quantum mechanics and thermodynamics which led to the search of quantum gravity (graviton)? Is is also that earlier to that the general notion was that black holes only absorb matter and does not radiate anything? Apart from this what are Dr.Hawking's other significant contributions? Thanks.