Discussion:
Solar energy
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Gordon
2014-02-01 14:31:27 UTC
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How long does it take for the energy produced by a nuclear fusion in
the core of the sun to reach the surface of the sun and be radiated
into space?

It seems that the energy released by a nuclear fusion in the sun's
core would not be transferred as light because light can be emitted
only by valence electrons being bumped into an elevated state then
falling back to their stable state, emitting a photon in the process.

The initial energy released by a nuclear fusion in the core of the sun
must travel by physical collisions and transfer of momentum from
particle to particle, gradually making it to the solar surface where
atoms with valence electrons exist, then this energy can take the form
of light and be radiated into space.

Gordon
Albert van der Horst
2014-02-05 15:52:54 UTC
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Post by Gordon
How long does it take for the energy produced by a nuclear fusion in
the core of the sun to reach the surface of the sun and be radiated
into space?
It seems that the energy released by a nuclear fusion in the sun's
core would not be transferred as light because light can be emitted
only by valence electrons being bumped into an elevated state then
falling back to their stable state, emitting a photon in the process.
The initial energy released by a nuclear fusion in the core of the sun
must travel by physical collisions and transfer of momentum from
particle to particle, gradually making it to the solar surface where
atoms with valence electrons exist, then this energy can take the form
of light and be radiated into space.
You bet that in the interior of the sun there is a photon sea
compatible with a temperature of a couple million Kelvin.
That is not light, it is fairly hard X-rays.
Now admittedly these photons can't get at the surface at the speed
of light, I give you that (and only that).
Post by Gordon
Gordon
Groetjes Albert
--
Albert van der Horst, UTRECHT,THE NETHERLANDS
Economic growth -- being exponential -- ultimately falters.
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