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Stephen Hawking famously posited that the mass of a black hole can indeed decrease, through the mechanism of Hawking radiation. A simplified view of this is that quantum fluctuations near the event horizon, boosted by intense gravity, can generate particle pairs, one of which can escape the vicinity of the black hole and thus carry away energy or mass. In effect this is a thermodynamic interaction with the universe as of black body radiation; the apparent temperature of the black hole being inversely proportional to the its mass. By this mechanism a black hole could 'evaporate', with the rate of evaporation increasing as the mass decreases. This does of course presume that the amount of radiation emitted (Hawking radiation is calculated to be quite weak) is not balanced by the rate at which matter or energy is being absorbed by the black hole.

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9y ago
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14y ago

One of his theories was that, he belived that under certain conditions black holes can give off subatomic particles,s oon to be known as Hawking radiation.

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Q: What were Steven Hawking's theories?
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