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Otter@lemmy.ca to Comic Strips@lemmy.worldEnglish · 2 days ago

'Flettner Rotor' - xkcd

imgs.xkcd.com

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'Flettner Rotor' - xkcd

imgs.xkcd.com

Otter@lemmy.ca to Comic Strips@lemmy.worldEnglish · 2 days ago
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Source: https://xkcd.com/3119/

  • Alexander@sopuli.xyz
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    1 day ago

    I thought a lot about these things, and apparently, a less elegant way to tackle this problem is decoupling power harvesting and propulsion. Like, put your best suitable power plant on a boat, then conduct power to best propulsion (probably submerged turbine or something)

    • qjkxbmwvz@startrek.website
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      1 day ago

      https://en.m.wikipedia.org/wiki/Blackbird_(wind-powered_vehicle)

      Can go directly upwind (no tacking required). Can also be applied to boats.

      • tpyo@lemmy.world
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        1 day ago

        I can’t find the original video I wanted. It was by one of these guys (I think) for sure one of the bigger science creators, but then I DID actually find a more topical video, about this exactly!

        This is one by Steve mould:
        https://youtu.be/u5InZ6iknUM

        Which was inspired by the veritasium one:
        https://youtu.be/jyQwgBAaBag

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