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Aristotle: "Babe, Sun's not hot" (ani.social)
submitted 1 week ago by to c/historymemes@piefed.social
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Context:
Aristotle and his contemporaries believed that the celestial bodies, particularly the Sun, is made of quintessence (fifth element) to be able to float that high up in the atmosphere. It is not the Sun that is hot, rather its rays having friction with the atmosphere that makes it hot.
Leonardo da Vinci disproved this by focusing sunlight in a concave mirror, arguing that the sun rays have intrinsic heat. He also observed how very hot metal turns white, the colour of the Sun.

I actually nicked the whole idea from Vsauce's short: https://youtube.com/shorts/gNVj-FIxoe4
Just watch that instead, and spot the comment where I got this meme from.

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[–] 16 points 1 week ago (4 children)

Aristoteles was a dumb motherfucker with loads of shot ideas.

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  • [–] 2 points 1 week ago (3 children)

    Who died and made Aristotle king of the nerds?

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  • [–] 2 points 1 week ago (2 children)

    Platon

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    • [–] 6 points 1 week ago

    I know Aristotle sounds stupid but I don't see how da Vinci disproved it.

    Aristotle said the sun itself wasn't hot but created heat through friction. So the heat came off the sun because of that friction. You can focus that heat no matter the source.

    A more knowledgeable (but still inaccurate) Aristotle could have argued: The hydrogen (quintessence) that makes up the sun doesn't have intrinsic heat but heat is created through gravitational compression and fusion.

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    [–] 2 points 1 week ago

    Nice meme (funny) 👍

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    [–] 1 point 1 week ago (1 child)

    I don't see how a concave mirror disproves Aristotles theory. Why wouldn't concentrating the friction rays also result in more heat?

    As for the second bit, the sun isn't made out of metal. And metal isn't the only thing that turns white. Dog shit used to turn white, but not because of heat.

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    • [–] 1 point 1 week ago

    Just saw that last night! I had had no idea we ever thought like that.

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