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Samir Mathur gives a very accessible (heuristic?) account of Hawking radiation and why it leads to the black hole losing mass. You can access the page here. It's a work in progress and is updated about once every couple of months. To summarize, the lifetime of particles is dictated by $\Delta E \Delta t < \frac{\hbar}{2}.$ Normally this means that the ...

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Let us try to clear up terminology here: A black body is classically defined as a perfect absorber of radiation. No, it is not. The classical description of the perfect absorber also includes an emitter black body is an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence. A ...

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