Chinese Maglev test vehicle sets world record, accelerating from 0 to 318 MPH in 2 seconds

Comments

• cogitase@lemmy.dbzer0.com ⁨2⁩ ⁨days⁩ ago

  7.2 g acceleration. You could strap a human on there and they’d survive the acceleration phase.

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  • Diplomjodler3@lemmy.world ⁨2⁩ ⁨days⁩ ago

    For an untrained person this night well be lethal.

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    • kerrigan778@lemmy.blahaj.zone ⁨2⁩ ⁨days⁩ ago

      Only 2 seconds of horizontal g? Not unless they weren’t securely against the seat and died due to blunt force trauma from being slammed into the seat back.

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    • Beacon@fedia.io ⁨2⁩ ⁨days⁩ ago

      Yeah this link says most people can only take 4 to 6 g, but fighter pilots can take up to 9.

      https://www.sciencefocus.com/science/whats-the-maximum-speed-a-human-can-withstand

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    • AcesFullOfKings@feddit.uk ⁨2⁩ ⁨days⁩ ago

      [deleted]

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  • otter@lemmy.dbzer0.com ⁨2⁩ ⁨days⁩ ago

    That’s an expensive way to look inside your own skull.

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• NotMyOldRedditName@lemmy.world ⁨2⁩ ⁨days⁩ ago

  Now we just need those inertial dampeners!

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• DeuxChevaux@lemmy.world ⁨2⁩ ⁨days⁩ ago

  What a way to spill your cocktail…

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• Etterra@discuss.online ⁨2⁩ ⁨days⁩ ago

  I wouldn’t want to travel in that, but it would be a good way to get shit into orbit without using rockets.

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  • Noodle07@lemmy.world ⁨2⁩ ⁨days⁩ ago

    Railgun that shit up

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• CompactFlax@discuss.tchncs.de ⁨2⁩ ⁨days⁩ ago

  Your move hyperloop.

  So what’s the limit of the human body? That’s more than a couple g.

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  • krashmo@lemmy.world ⁨2⁩ ⁨days⁩ ago

    I don’t know but it seems like the simple answer is to just not accelerate that fast. I doubt this was an attempt to imply that we should do this regularly. It’s just a test to show what the technology is capable of. There’s no real benefit to accelerating to that speed that quickly vs doing it over 30 seconds or longer.

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    • jol@discuss.tchncs.de ⁨2⁩ ⁨days⁩ ago

      You can absolutely accelerate this fast if there are no people on board. China probably wants safe autonomous cargo trains at some point.

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    • Beacon@fedia.io ⁨2⁩ ⁨days⁩ ago

      There are non-transportation uses for it. Namely for weapons.

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    • CompactFlax@discuss.tchncs.de ⁨2⁩ ⁨days⁩ ago

      Definitely a “look what I can do” test and not a practical example of how the trams in Beijing will travel between stops. Though it would reduce trip time!

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  • drmoose@lemmy.world ⁨2⁩ ⁨days⁩ ago

    20-40 Gs for horizontal force.

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    • CompactFlax@discuss.tchncs.de ⁨2⁩ ⁨days⁩ ago

      Squishy.

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• Jerb322@lemmy.world ⁨2⁩ ⁨days⁩ ago

  How far did it travel in that 2 seconds?

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  • Royy@lemmy.world ⁨2⁩ ⁨days⁩ ago

    If acceleration were constant (and my math is right), it would be 194m. We can assume due to air resistance being proportional to the square of the speed that acceleration will be more initially and less later, so realistically it will be >194m

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