Aneurysm Posting

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For shitposting by people who can smell burnt toast.

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Ok sir (sopuli.xyz)

submitted 2 months ago by PinkyCoyote@sopuli.xyz to c/aneurysmposting@sopuli.xyz

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[–] JackGreenEarth@lemm.ee 2 points 2 months ago (4 children)

Just in case anyone actually wants to know: fire is not plasma, which is ionised (electrons not bound to the nucleus) matter, but simply smoke particles hot enough to glow.

[–] Umbrias@beehaw.org 0 points 2 months ago (2 children)

Fire is much more complex than that. Fires appearance comes from:

blackbody radiation, as you point out from smoke particles but also from gaseous components
chemiluminescence, the chemical reaction itself emits light, and this is why fires can burn in different colors. In fact you can buy additives which are generally metals which make fires burn blue or green or red, etc.

Fire is an active chemical reaction. It's a transition between often solid or liquid, sometimes gaseous, fuels, into gaseous products, all while undergoing a chemical reaction. It's not a state of matter, states of matter concern the phase of equilibrium conditions, and fire is decidedly not in equilibrium.

[–] original_reader@lemm.ee 2 points 2 months ago (1 children)

This needs an ELI5 version...

[–] Umbrias@beehaw.org 3 points 2 months ago

Hot things glow, some chemical reactions glow, fire does both, mostly the latter especially for cooler fires.

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