Comment on Gotta go fast

veniasilente@lemmy.dbzer0.com ⁨15⁩ ⁨hours⁩ ago

• starman2112@sh.itjust.works ⁨13⁩ ⁨hours⁩ ago

  Hard to beat spinning a magnet to generate electricity, and it’s hard to beat boiling water to spin a magnet

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  • veniasilente@lemmy.dbzer0.com ⁨11⁩ ⁨hours⁩ ago

    Fair point magnets are basically a superpower by themselves.

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    • Canonical_Warlock@lemmy.dbzer0.com ⁨9⁩ ⁨hours⁩ ago

      So is water. Hard to beat a miracle fluid that covers most of our planet.

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      • veniasilente@lemmy.dbzer0.com ⁨5⁩ ⁨hours⁩ ago

        “Worldbuilders hate this trick! Cover most of your world in water so you have less stuff to figure out names for.”

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• anotherspinelessdem@lemmy.ml ⁨15⁩ ⁨hours⁩ ago

  Photovoltaics

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  • Tiresia@slrpnk.net ⁨13⁩ ⁨hours⁩ ago

    in meme form

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    • veniasilente@lemmy.dbzer0.com ⁨12⁩ ⁨hours⁩ ago

      Instasaved!

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  • Infamousblt@hexbear.net ⁨14⁩ ⁨hours⁩ ago

    Actually if you look inside the cells it’s just a tiny little pocket of boiling water

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    • gandalf_der_12te@discuss.tchncs.de ⁨6⁩ ⁨hours⁩ ago

      (it’s not btw, this is satire)

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    • Canonical_Warlock@lemmy.dbzer0.com ⁨8⁩ ⁨hours⁩ ago

      That’s actually what they dope the silicon with, one really angry water molecule.

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    • anotherspinelessdem@lemmy.ml ⁨12⁩ ⁨hours⁩ ago

      😭

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  • starman2112@sh.itjust.works ⁨8⁩ ⁨hours⁩ ago

    Guess what I’m boiling with the power from that solar panel

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• MML@sh.itjust.works ⁨10⁩ ⁨hours⁩ ago

  I think this may be due to the specific heat of water, no other substance matches it.

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  • veniasilente@lemmy.dbzer0.com ⁨5⁩ ⁨hours⁩ ago

    Fair point it’s been so long since I last took a chemistry course that if I knew anything cool and hidden about water, I’d have trouble resurfacing it. I do know they call it “dihydrogen monoxide” in some reports tho.

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    • flambonkscious@sh.itjust.works ⁨3⁩ ⁨hours⁩ ago

      Really? I thought that was just a “sticker on the waterbottle joke”

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• Dippy@beehaw.org ⁨13⁩ ⁨hours⁩ ago

  Wind and photovoltaic have nothing to do with water

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  • apotheotic@beehaw.org ⁨13⁩ ⁨hours⁩ ago

    Mfw they use wind and photovoltaic energy to pump water to a high place so they can put it through a turbine later

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• synapse1278@lemmy.world ⁨8⁩ ⁨hours⁩ ago

  I learned the other day there is a nuclear reactor in development that will use as primary coolant…molten lead.

  Still use to boil water then, but pretty freaky still.

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• eestileib@lemmy.blahaj.zone ⁨8⁩ ⁨hours⁩ ago

  Water is a fucking insanely awesome material.

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• Teppa@lemmy.world ⁨11⁩ ⁨hours⁩ ago

  I’d guess because its all heat energy in the end, so you need something that expands and compresses. The alternative I suppose would be like sound waves, or mechanical energy, or whatever a battery does.

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  • veniasilente@lemmy.dbzer0.com ⁨11⁩ ⁨hours⁩ ago

    That does make sense, but then again, it’s been 2000 years and we can’t find something that boils, expands and compresses better than water? Or is t just because water is commonplace enough in comparisoan?

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    • Test_Tickles@lemmy.world ⁨10⁩ ⁨hours⁩ ago

      I am sure that they have, but there’s a lot more to it than just that. They have to consider long term maintenance, safety, and availability of parts.

      Water is known and well established, you can buy a lot of stuff right off the shelf and we know it’s short and long term dangers. Everything else gets expensive and unknown very quickly.

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    • Canonical_Warlock@lemmy.dbzer0.com ⁨9⁩ ⁨hours⁩ ago

      Somebody linked above to a new closed loop turbine design which uses supercritical CO2. I know from CO2 refrigeration that CO2 has some insane volumetric expansion based on temp which makes it a good candidate for use in a closed loop turbine system. Plus, because they’re running it through the turbine as a supercritical fluid, the density is higher than that of steam so it requires smaller turbines. The biggest issue is that because it’s super critical CO2 youre talking about working pressures well over 1000PSI. That doesn’t make it impossible to work with as we already know from CO2 refrigeration, but it does make it a bit more difficult than just boiling water.

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    • Teppa@lemmy.world ⁨11⁩ ⁨hours⁩ ago

      I always assume they had additives in closed loop systems, but you’re right you’d think there would be something.

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      • YellowParenti@lemmy.wtf ⁨10⁩ ⁨hours⁩ ago

        Started looking into what liquids they are using and realized i was reading treatment chemicals they add to the boiler water. I know there’s some reactors that use molten salt, but they are just used as energy transfer to… the boiler full of water. Lol. The properties of water expansion from liquid to steam probably can’t be beat or it’s qualities of cheap, simple, good enough.

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• Lydia_K@lemmy.world ⁨11⁩ ⁨hours⁩ ago

  Good news!

  youtu.be/BNDrC6fkjf0

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