Friday, November 19, 2021

Hyperphysics Fails at Basic Science, Logic, Reasoning, and Math

https://climateofsophistry.com/2021/11/17/hyperphysics-fails-at-basic-science-logic-reasoning-and-math/ 

 

My reply:

 @Malcolm Hornsby
[[A Question. How confident are you all that the Stefan Boltzmann constant is a suitable measure of W/m2 for an atmosphere?]]

So many people never 'get' that gases in Earth's atmosphere don't emit Planck black body radiation, thus aren't subject to the S-B Law. Planck radiation is only emitted by solids and liquids with surfaces, which explains the units of W/m^2. If gases did it, the units would be W/m^3. Yes, if gases are subjected to high temperatures and pressure that strip electrons from molecules, it becomes a dense plasma like on the Sun, and it does emit Planck radiation.

"The dominant source of black body radiation are transient oscillating dipoles induced by thermal vibrations within the material.

"If we treat a solid as a cloud of electrons intermingled with a cloud of nuclei, then any thermally induced vibrations will cause small local changes in the average electron and nucleus density, and this will result in a small local electric dipole. As these dipoles change with time they emit the electromagnetic radiation that we see as black body radiation.

"This applies to any system dense enough to support these sorts of charge density oscillations. Under normal conditions this means a solid or a liquid, but a plasma will behave in the same way if it can be made dense enough. This is hard to do in the laboratory but the Sun manages it :-)

"However a gas cannot sustain oscillations of this form because the gas molecules spend most of their time distant from each other. To a first approximation gases do not emit black body radiation. You only see radiation from rotational, vibrational and electronic transitions, and these produce discrete lines. Gas molecules do interact when they collide, so if you increase the number of collisions by making the gas denser and hotter it will start to produce more black body radiation and eventually transition to radiation dominated by the black body spectrum." -

https://physics.stackexchange.com/questions/222092/blackbody-or-characteristic-emission-of-radiation

Learn real thermal physics and how it defeats every IPCC lie. The IPCC lie machine turns thermal physics upside-down, inside-out, and ass-backwards to turn cooling processes into warming ones.

http://www.historyscoper.com/climatescience101.html

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