Rockets being passé, China is working on using an electromagnetic railgun to launch crewed spacecraft the size of a Boeing 737, weighing 50 tonnes, into orbit. This remarkably ambitious project is even more ambitious than it seems at first glance.

    • atocci
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      8 months ago

      While railguns are known for rapidly accelerating projectiles to hypersonic speeds over the short length of a gun barrel, there’s no limit on how slowly they can accelerate something or how long the “rail” part of the railgun can be. Accelerating “slowly” over a long distance is totally possible!

      • Repple (she/her)
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        28 months ago

        Sure, but it’s gonna require one hell of a long rail…

          • @Kbobabob
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            38 months ago

            They can call it the vomit comet.

          • @[email protected]
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            28 months ago

            That would put the g-forces back in play: the faster you go around the rail the stronger the centripetal force that keeps you going in a circle. If the rail is straight the force only depends on acceleration not speed.