• AirDevil@lemmy.world
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    5 months ago

    This is the first step to having magnetic wheels become a thing. We know canonically Jim Kirk’s motorcycle uses these, so it’s definitely mainstream by ~2250.

    Honorable mention: the Bell Riots happen September this year, and it seems we’re on track for those too

    • pearsaltchocolatebar@discuss.online
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      5 months ago

      The technology is getting there. I forget which company did it, but one has developed an insane magnetic suspension system for automobiles.

      Right now the limiting factor is the energy required, so battery tech is the bottleneck.

      It’s a real shame shipstones haven’t been figured out yet.

      • Death_Equity@lemmy.world
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        5 months ago

        It was Bose. Yes, the premium sound system producers. It never went anywhere, despite being practical magic, because it added around 2,000lbs and cost six figures.

        They also developed a semi-tractor seat using the same sort of voodoo, which is on the aftermarket for around $5k installed.

        • blackluster117@possumpat.io
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          5 months ago

          I’ve started seeing magnetic suspension offered as a luxury option in nicer cars, wonder if it’s derived from that Bose system. I remember watching the demo from the 90s, mind-blowing.

          • Death_Equity@lemmy.world
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            5 months ago

            Not the same sort of thing. Bose’s “magic carpet” suspension used linear electromagnetic drivers and sensors to move the suspension to compensate for the road conditions detected. They took speaker drivers on steroids and did noise cancellation on bumps and dips in the road.

            Magneride and similar use an electromagnetic coil to adjust dampening by acting on a ferrofluid, which changes how hard or soft the suspension is. You want a stiff “sport” suspension, fluid is high viscosity and harder to move. You want a soft “comfort” suspension, the fluid is lower viscosity and moves easily.

      • TheTetrapod@lemmy.world
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        5 months ago

        For a heavily constrained system like a car’s shock absorbers, couldn’t permanent magnets be used instead of electromagnets?

        • Hacksaw@lemmy.ca
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          5 months ago

          I think the main advantage to fixed stiffness springs was that it was controllable. So if it was a fixed strength magnet the advantages over springs is likely limited compared to the cost. Magnetic suspension is cool because it’s an active suspension system.

        • Damage@feddit.it
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          5 months ago

          I’m picturing a car crash where some poor sod is perforated by a super strong magnet that went flying

    • edric@lemm.ee
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      5 months ago

      Would it be hard to translate brushless motors into bikes/vehicles? Don’t those things use magnetism?

      • AirDevil@lemmy.world
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        5 months ago

        Oh I’m sure it’d be quite hard. But that’s a future engineer’s problem lol