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Here's another furphy...
"The nuclear core of the Sun is a plasma at a temperature of about 1.5KeV (true...that equates to around 15.5 Million K, which is just a little short of the true value, 15.7MK)."
" Beyond this, our knowledge about the Sun's interior is highly uncertain. Processes which govern the abundance of elements, nuclear reactions, and the generation of and the strength of the interior magnetic fields, are incompletely known." Whilst they're not fully understood, we understand and know a lot more about it than what he is claiming. Far more. How do we know this....from observations and mathematical modeling of the characteristics of the behaviour of gases (plasmas) under the conditions that are present within stars. We know what elements are there and how abundant they are, their proportions cf. to the major constituents of the stars, the nuclear reaction rates for the various nuclear processes that occur within stars, the EOS for the regions present within the stars and how these relate to the gas laws and the laws of thermodynamics, MHD and how these tie in with the generation of the magnetic fields of stars.
What Perrat should do is instead of quoting figures and getting theory mangled with respect to astrophysics, is actually go and do some courses or read the relevant literature and learn something about what he's talking about. Either that, or just stick with his field of speciality...industrial plasmas.
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