Comment on Perpetual motion eludes us again.

thisbenzingring@lemmy.sdf.org ⁨3⁩ ⁨weeks⁩ ago

• msprout@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

  This is basically how a rail cannon works, just with electromagnets that can reverse their polarity.

  It’s a powerful way to accelerate anything — I think it’s most famously used in those types of metal roller coasters that start you at a flat-with-the-ground angle, and then just fuckin launch you up a ramp to 45° with electromagnets. The issue is that you need a fuckton of energy to do that.

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  • CarbonIceDragon@pawb.social ⁨3⁩ ⁨weeks⁩ ago

    That’s not how a railgun works, that’s how a coilgun works. Railguns create a loop of electric current that flows into one wire, through the projectile into the other wire, and back down to the starting point again, this configuration creates a force that pushes the projectile down the rails

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    • msprout@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

      Ah, I appreciate the correction. I’m not an engineer but the youngest cousin of a clan of them, so I just got the highlights of the true evil genius shit. :p

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  • prole@lemmy.blahaj.zone ⁨3⁩ ⁨weeks⁩ ago

    What we need for true perpetual energy is to just capture that guy Blanka from Street Fighter.

    Surely that dude has to eat a lot in order to produce so much energy, no? Or is it just all stored somewhere in his body?

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