Molecular Electron Transitions

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@rav2n 2 ай бұрын

3:15 - "molecules, unlike atoms, can vibrate and rotate" - but the electron cloud around in atoms also move around with high KE and -ve PE right - so what is this distinction - cannot understand

@Thekilldbera 5 жыл бұрын

Your explanation is awesome.

@anamarija6299 7 жыл бұрын

you are really good but I recommend you to be more calm when you talk

@mariamel-nazer9456 4 жыл бұрын

You explain real good, but please can you talk slower?

@missiontomars8244 Күн бұрын

Andrey, I just came across your videos. Excellent explanationsl...but here is the reason I am contacting you. Are you a greenhouse gas skeptic as I am? What follows is my thoughts on the thermodynamics of the earth's atmosphere and, if I am correct, why the greenhouse gas theory cannot be correct. As the earth's surface warms, it will release energy back to cooler matter. However, at the thin layer (10 mm?) where the surface adjoins the atmosphere, the surface layer molecules are bombarded billions of times per second by molecules of the atmosphere. Some of those collissions will result in an energy exchange, thus reducing or eliminating the chance that any IR radiation will be released by those surface molecules. Even if some IR radiation is released by the surface (perhaps by molecules not in direct contact with the atmosphere) a similar process occurs to the GHG molecules when they collide with the N2 and O2 molecules in most of the atmosphere. Thus, they, too, will rarely release photons of IR energy, rather their "excess" energy is transferred by collisions to other gas molecules, which increases the vibrational energy of those molecules. As the N2 and O2 molecules cool sufficiently, their vibrationaly energy is released as photons back into space, ensuring the the earth's incoming and outgoing radiation balance remains essentially the same. At the top of the atmosphere, some of these dynamics change. At the cooler temps, there will be a greater chance that the GHG molecules will release their energy as photons and/or that these molecules wil actually acquire additional energy from collisions with the N2 and O2 molecules, allowing a greater chance that these CO2 molecules WILL release an IR photon. However, even at the top of the atmosphere, most of the molecules will be N2 and O2. As these molecules coo, their vibrationaly energy is released as photons back into space, ensuring the the earth's incoming and outgoing radiation balance remains essentially the same. However, the GHG theory flies in the face of simple and well accepted thermodynamic processes I have just outlined. Very little of the UV radiation from the sun is able to be captured, transferred, or retained thru IR processes. Most of that energy is transferred and eventually released by N2 and O2 molecules. GHGs play very little role in the overall processes of thermodyamics of the atmosphere. Please tell me where I am wrong. I am not a physicist. Just an old fat guy with lots of time on his hands!!