I mean if every variable aligns with any possible edge case that can bleed off velocity including three body interactions with the moon. Is there ever a situation where some substantial (car++) or enormous (skyscraper+++) size rock lands on the surface without explosive energy? Align stars, consult math mediums, play some ZZ Top, piss off Bary the narcissist, or conjure a primordial black hole, just land me a big rock in my yard Science Santa. I want an m-type for Maymass, but any type will do if you can land it.

  • ooterness@lemmy.world
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    1 day ago

    No, there isn’t anything like that. Big heavy objects fall. Falling objects are moving fast when they hit the ground. Further details are irrelevant.

    Are you absolutely sure that you’ve seen a coin in those vortex demos just stop? Coins falling over doesn’t count, there’s nothing like that in space. Otherwise, they are moving at quite a clip when they reach the bottom of the funnel.

    The one possible exception is when you detach part of the mass. If your vehicle removes some mass and launches it, you can use the reaction force to slow down. This is what a rocket engine does, for example. (Note the propellant will still impact at very high speed, as evident from the plume of any rocket landing.) The higher the relative velocity of the reaction mass, the less you’ll need to come to a complete stop. But at this point we are talking about a manmade vehicle, not a naturally occurring rock.