• rog@lemmy.one
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      1 year ago

      Its just a hole though. If you have a tennis racket with no strings and swing it over something stationary the object doesnt move

      • silly goose meekah@lemmy.world
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        1 year ago

        With the tennis racket analogy both portals would be moving. In the thought experiment from the image just one is moving, resulting in an unaccounted for momentum, unless the people shoot out the blue portal

    • NoSuchNarwhal@midwest.social
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      1 year ago

      You can tell it’s been a long time since anyone played the game.

      “Momentum, a function of mass and velocity, is conserved between portals. In layman’s terms, speedy thing goes in, speedy thing comes out.” -GlaDOS

      Now it’s time for an all-out flame war with anyone who even took a moment to consider the utter nonsense that is A. ΔV goes in, ΔV comes out. And the bundle of wage slaves has velocity (and mass, therefore momentum) with respect to the portal.