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Physics, Astronomy & Cosmology / Re: Red shift
« on: 28/11/2005 09:51:38 »
i think my knowledge is a bit basic, but a particla can only have zero energy at absolute zero (-273K or thereabouts). If a black hole reduced the energy of photons to nothing, that would mean the event horizon has a temperature of absolute zero. Isn't this impossible? Also, frequency is related to this, as if a light wave has zero frequency then, like solvay says, it is still, and in effect ceases to exist - a phenomenon similar to that of particles at absolute zero.
Astronauts used to ride rockets with a million litres of hydrogen burning under their seats. D'you think they said "Gee, I'd love to go to the Moon today, but it seems a little risky"?
Astronauts used to ride rockets with a million litres of hydrogen burning under their seats. D'you think they said "Gee, I'd love to go to the Moon today, but it seems a little risky"?