Mine hit me with the “We’re spending all this money on you now so you can’t grow up and say we didn’t spend money on you when your were a kid.”

  • Angry_Autist@lemmy.world
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    1 year ago

    ‘Gravity is caused by the rotation of the earth’

    apparently that’s what they taught back when she was a kid

    But how even?!

    • Spacehooks@reddthat.com
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      1 year ago

      Maybe cause The force can simulate gravity. That’s why you see rotating stuff in sci-fi.

    • Muad'dib@sopuli.xyz
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      1 year ago

      Well that’s how it works in Larry Niven’s Ringworld and also Halo. They just thought the earth was a ring.

      • VindictiveJudge@lemmy.world
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        1 year ago

        It was either in one of the books or an easily missed line in Halo 1, but the Halos actually don’t spin fast enough for the amount of surface gravity they have, implying artificial gravity is involved.

      • Angry_Autist@lemmy.world
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        1 year ago

        Halo arrays and RIngworld work because objects in frictional contact with the inner side of the boundary material are imparted linear velocity by the motion of the structure, that’s not at all how it works on planets.

        Even if Earth were tide locked to the sun it would still have the same exact degree of pull on other mass-having bodies. A ring array that stops spinning has occupants who experience free fall

        • Muad'dib@sopuli.xyz
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          1 year ago

          Here’s another fun fact: A ringworld exerts zero net gravitational force on anyone inside of it. It’s one of the implications of shell theorem.