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On 07/10/2024 08:29, Niklas Holsti wrote:On 2024-10-07 1:08, Brett wrote:>Lawrence D'Oliveiro <ldo@nz.invalid> wrote:>On Fri, 4 Oct 2024 17:59:03 -0000 (UTC), Brett wrote:>
>A gas cannot emit the spectrum we see from the sun, liquid metallic>
hydrogen can.
The spectrum of the Sun is primarily the continuous emissive one of a
"black body" at a surface temperature of 6500K or thereabouts.
>
Superimposed on that are absorption lines corresponding to a range of
elements, representing cooler substances in the surrounding
"photosphere",
I think it´s called.
>
Which of these lines do you think is characteristic of this mythical
"liquid metallic hydrogen" of yours?
>
Fun fact: originally it was thought that those lines in the spectra
of the
Sun and other stars were characteristic of the entire makeup of the
bodies
concerned. In other words, they were full of elements much like those
that
make up the Earth and other planetary bodies.
>
A young doctorate student named Cecilia Payne, after some careful study,
came to the remarkable conclusion that stars were mostly hydrogen and
helium, and these spectral lines were due, in effect, to relatively
small
amounts of contaminants in among that bulk of hydrogen and helium.
>Gases do not show the pond ripples from impacts that we see from the>
sun
surface.
What "impacts on the sun surface"?
Watch the first few minutes of the first video in the playlist to see a
solar eruption and some of that mass crashing back down on the sun
surface,
causing pond ripples. The idea of a plasma gas sun dies right there.
>
Stratified fluid (non-plasma) atmospheres can support pond-like waves:
>
https://en.wikipedia.org/wiki/Gravity_wave#Atmosphere_dynamics_on_Earth.
Note to Brett - gravity waves in a fluid are completely different from
gravitational waves, such as those generated by black hole collisions
and detected by LIGO. You probably have some other magic snake oil
beliefs about those, but don't get them confused with gravity waves in a
fluid.
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