egg changed the topic of #principia to: Logs: https://esper.irclog.whitequark.org/principia | <scott_manley> anyone that doubts the wisdom of retrograde bop needs to get the hell out | https://xkcd.com/323/ | <egg> calculating the influence of lamont on Pluto is a bit silly…
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<paculino>
Especially since PV/nRT is very different between N2 and CO2 at high pressures.
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<paculino>
(I assume the value of that is why the composition would matter, but may be wrong)
<paculino>
...Did the nickname thing die?
<queqiao->
⟨sumguy62⟩ the what now?
<queqiao->
⟨sumguy62⟩ CO2 is a lot less of an ideal gas than N2
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<paculino>
The ratio PV/nRT can tell how a real gas varies from the ideal
<queqiao->
⟨Quadrupole🇵🇸🇸🇾🇨🇺⟩ According to this paper, the number density of the earth's atmosphere at 140 km is around 6e10 cm^{-3} _at high solar activity, dayside_. Venus and Mars' atmospheres achieve this density at 145 and 135 km, respectively.
<queqiao->
⟨Quadrupole🇵🇸🇸🇾🇨🇺⟩ Venus' atmosphere is not much thicker than the earth's despite the former's higher pressure at the reference level, because earth's upper atmosphere is heated by Van Allen belt, inflating the scale height.
<_whitenotifier-ee4>
[Principia] pleroy closed pull request #3798: Change a flight plan test to systematically trigger the generation of a negative period, and change the checks into warnings - https://github.com/mockingbirdnest/Principia/pull/3798