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Are black holes hot or not?

Daniel and Kelly’s Extraordinary Universe

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What Is the Emission of Light?

So we've been talking about the emitting light. And by that, we just mean photons, right? Remember that by light we don't always mean things that you can see. You shouldn't expect it to be glowing in a way your eyeballs could pick it up. So because a banana is made out of charged particles, it tends to emit photons. It also emits nutrinos and admits other kinds of radia from the other kind of forces that it interacts with. But that's why it emits light, and that'swhy t emits photons.

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