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Connor McCormick ~ jtrending
@nor
Ok fine /science What’s the best argument for why light is a particle? Note: not why light emission and absorption is quantized, that is different I already believe it
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Connor McCormick ~ jtrending
@nor
cc @eulerlagrange.eth 🙏
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FelipeFlores.⌐◨-◨
@flancaster
Somewhat of a trick question that invokes the times when it was believed light should be either particle or wave, and we know both models fall short to what light really is. But if asked to argue in favor of particle-ness: Energy changes during Compton scattering shouldn't happen if light were merely a wave.
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Alejandro
@chemistrylab
Because it interacts with mater. That's why we can take advantage of the photoelectric effect in which we can convert light into electric energy
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Sam Iglesias
@sam
the photoelectric effect?
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Dan Finlay 🦊
@danfinlay
Maybe it’s more obvious with the heavier energy particles, like how neutrinos despite rarity will react with chemicals they pass through, but film grain seems to show a similar effect to me. So I guess I’d point to examples where light is barely present and is detected in dots.
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John Camkiran
@johncamkiran
Quite simply, a quantum of light can be measured to have a point position in space, much like a particle but unlike a wave. You can think of it as a localised wave or ‘wavelet’. But put many such quanta together and this no longer becomes possible on account of their interaction.
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