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pforeman
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How can a particle created just outside the event horizon with no velocity (?) escape a black hole, never to return, when black holes gravity is so strong that they can pull matter away from stars many kilometers distant?
This is not how Hawking radiation works. Unfortunately, how it actually works does not let itself be well described at B level so what is left for popular scientific descriptions are imperfect analogies.pforeman said:How can a particle created just outside the event horizon with no velocity (?) escape a black hole, never to return, when black holes gravity is so strong that they can pull matter away from stars many kilometers distant?
That's not Hawking radiation. That's Strawman radiation.pforeman said:How can a particle created just outside the event horizon with no velocity (?) escape a black hole, never to return, when black holes gravity is so strong that they can pull matter away from stars many kilometers distant?
Light starting outside the event horizon can always escape - it’s always moving at the speed of light.pforeman said:How can a particle created just outside the event horizon with no velocity (?) escape a black hole, never to return, when black holes gravity is so strong that they can pull matter away from stars many kilometers distant?
Yes, according to Stephen Hawking's theory of Hawking radiation, particles can escape from a black hole through a process of quantum tunneling.
Hawking radiation is a result of the uncertainty principle in quantum mechanics. It states that pairs of particles and antiparticles are constantly being created and destroyed at the event horizon of a black hole. In some cases, one particle from the pair can escape while the other falls into the black hole, causing the black hole to lose mass.
While Hawking radiation has not yet been directly observed, it is widely accepted by the scientific community as a valid theory. It has been mathematically proven and is consistent with other known principles of physics.
Yes, over time, the loss of particles through Hawking radiation can cause a black hole to shrink and eventually evaporate. However, this process is extremely slow and would take trillions of years for a black hole with the mass of our sun to evaporate.
Yes, Hawking radiation has important implications for the study of black holes and the understanding of the universe. It also provides a potential solution to the black hole information paradox, which states that information should not be able to escape a black hole, yet Hawking radiation suggests otherwise.