I want to travel around the world in three hours, who is gonna get me there first?

    • CanadaPlus@lemmy.sdf.org
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      2 months ago

      It’s like a shorter, less demanding space elevator that spins with a counterweight. It would enable you to reversibly fling things in and out of orbits just using mechanical force.

      Wikipedia has an article complete with a nice gif of how it would move in this exact scenario, to connect with a craft at 0 groundspeed.

      • intensely_human@lemm.ee
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        2 months ago

        From that gif it looks like the sky hook has to be orbiting. But then its release point is giving objects twice the velocity required for orbit.

        • CanadaPlus@lemmy.sdf.org
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          2 months ago

          Depends where you release. I haven’t actually done the orbital calculations for this, but I’m assuming there’s some setup that would work for juggling scheduled flights around the globe. If not, it’s a better propulsion technique or bust, basically.