From: Robert J. Bradbury (bradbury@aeiveos.com)
Date: Sat Mar 18 2000 - 06:20:32 MST
> Spudboy100@aol.com wrote (???):
> > Also is there the feature of photonic density-can ya pack
> > enough energetic photons inside a hydrogen atom's diameter?
>
> Doug Jones commented:
> No, the energy of the individual photons doesn't matter- the momentum of
> a photon is directly proportional to its energy, so a gigawatt of gammas
> produces the same thruat as a gigawatt of reds (about 3.3 newtons). The
> gammas are a lot harder to make, though.
This raises a raises lots of questions in my mind.... [Its early,
I can be over the edge].
a) What is the photonic density required to create a black hole
and do any of the principles of photon interaction prevent
this from focusing laser beams to produce a black hole?
[I may have asked this before, but I'm too lazy to go check
the archives.]
b) If you have particles (electrons, protons, etc.) circulating
in a syncrotron, emitting syncrotron radiation, shouldn't
they eventually "evaporate" into nothing? Or is it always
true that the photons they are emitting get replenished by
the external power source?
c) Why do astronomers, esp. X-ray astronomers, often quote the
temperatures of gas clouds in "millions" of degrees? If the
atom/molecule densities are on the order of a few per cc
I don't see how you can get temperatures like this. Temperature
corresponds to vibration or molecule velocity, but what is
the relationship between ionization state and temperature?
Is the effect of increasing temperature -- atom ionization
then acceleration of the ions? If so, then what would be
the "temperature" of an electron gas?
Robert
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