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Heat (lemmy.ca)
submitted 6 months ago by to c/science_memes@mander.xyz
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[–] 58 points 6 months ago (14 children)

A brushless motor only converts ~5% of its input to heat. That's low enough that you can reasonably call it a side effect.

Now, a computer, that's a heater that happens to produce math as a side effect. 100% of its input ends up as heat.

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  • [–] 8 points 6 months ago (4 children)

    I love firing up my PC and gaming on cold winter nights. A well placed fan or two and I can spread it through my entire apartment and the heat won't kick on all night. Ends up saving me money, my heater costs way more than my PC to run.

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  • [–] 1 point 6 months ago (3 children)

    Sounds like your cold winter nights are not very cold.

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  • [–] 1 point 6 months ago (2 children)

    It goes down well below freezing here. My apartment is small.

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  • [–] 1 point 6 months ago (1 child)

    By "well below" do you mean -30? Or do you mean -5? Either way, you must have much better insulation than I do, because I have multi-kilowatt heaters and even on not-so-cold days my poor PC can't compete, no matter how hard I game.

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  • [–] 7 points 6 months ago* (last edited 6 months ago) (3 children)

    It all becomes heat eventually in the end though. Sometimes it's just a multi step complex process outside the physical bounds of the heater.

    Wait a sec, is the universe just God's space heater?

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  • [–] 1 point 6 months ago

    Yes, what is that motor doing? If it's a drill, it's spinning a drill bit and that drill bit generates a lot of friction when it tries to make a hole in something, and that friction generates heat. If it's spinning a tire, that tire generates a lot of friction with the road.

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