• mnemonicmonkeys@sh.itjust.works
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      11 小时前

      Pluto and Charon are mutually tidally locked, so they don’t rotate in relation to each other.

      Plus, in smaller bodies you don’t need impossibly strong materials to make a space elevator like you’d need for Earth. Hell, Kevlar fiber is strong enough to make a space elevator from the Moon to one of the Lunar Lagrange points due to the reduced gravity

    • _haha_oh_wow_@sh.itjust.works
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      20 小时前

      Space is really huge and it might be possible that the theoretical space elevator would never strike another celestial body.

      This is 100% speculative and I have absolutely not done any fact checking other than the fact that space is indeed, really Big McLargeHuge.

      • tal@lemmy.today
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        17 小时前

        searches

        https://en.wikipedia.org/wiki/Tidal_locking

        However, if both the difference in mass between the two bodies and the distance between them are relatively small, each may be tidally locked to the other; this is the case for Pluto and Charon

        They’re apparently tidally-locked, so that’s one issue out of the way.

        https://en.wikipedia.org/wiki/Charon_(moon)

        Periapsis: 19 592.61 km

        Apoapsis: 19 598.92 km

        Eccentricity: 0.000161[10]

        So it’s pretty close to a circular orbit.

        Orbital period: (6 d, 9 h, 17 m)

        But it’d still have to change length by about 6 km every 3 Earth days.

        • Tiresia@slrpnk.net
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          17 小时前

          But it’d still have to change length by about 6 km every 3 Earth days.

          Maybe this is crazy, but make it a giant jumprope. When they’re closer together, the jumprope makes a tighter circle and spins faster. When they’re further apart, the jumprope makes a larger circle. Put a weight in the middle so it has enough centripetal force to keep the rope taut.

          Trust me, it works, I thought about it for two minutes.

        • ToastedRavioli@midwest.social
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          16 小时前

          If humanity ever were to have the means to build a 12.2k mile or 19.7k km elevator in space between two planets at the far reach of the solar system, I would assume that we would also be capable of somehow making it longer