• don@lemm.ee
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    9 days ago

    Yeah but ain’t no motherfucker gonna soon be jumping over onto the moon with pure human leg power. Still gotta detonate a slowly exploding bomb under our asses to leave this rock-covered ball bearing.

  • spacecadet [he/him]@hexbear.net
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    9 days ago

    Honest noob science question: is gravity as defined with Einstein’s space-time time definition mean it ceases to be an actual “force” …? Like, two masses affecting each other through gravity is not like two magnets but rather space-time “bending”?

  • Optional@lemmy.world
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    9 days ago

    I think this is a reprehensible attitude towards gravy.

    “Make gravy your bitch”; didn’t you ever enjoy a lovely meal with the savory sauce of gravy over biscuits or perhaps a meat of your choice?

    Terribly disrespectful!

  • Lovable Sidekick@lemmy.world
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    9 days ago

    As a kid I used to dream that I could levitate by sort of straining my muscles upward and lifting myself away from the ground. It would be pretty cool to do that IRL.

    • meyotch@slrpnk.net
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      9 days ago

      Funny, I had a similar series of dreams as a kid like that. I just sort of learned to ‘walk upwards’ and levitate.

      • Phlimy@jlai.lu
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        9 days ago

        Mine was that if I curled up into a ball I would float like a helium balloon lol.

        • meyotch@slrpnk.net
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          9 days ago

          Years before the books were written! I am an old :(

          But still, I’m sure it’s like riding a bicycle and I have these water balloons…

    • Stalinwolf@lemmy.ca
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      9 days ago

      I used to contemplate jumping in the air, then quickly using my foot to spring upward off of my other leg/foot, and repeating that until I’ve reached a desired elevation.

    • Reddfugee42@lemmy.world
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      8 days ago

      In a system where gravity is pulling on your hand, which is stronger, the force of the earth pulling in your hand, or the force of your hand pulling on the Earth?

      Answer: it’s a trick question. In such a system, both sides feel the force equally

      • KillingTimeItself@lemmy.dbzer0.com
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        8 days ago

        if we’re talking gravity physics, the earth, by basically every possible kilogram of mass imaginable to the human mind. But this goes without saying, because you stick to the earth, the earth doesn’t stick to you, so.

        Of course technically, the force is applied to both objects, but considering the scale mismatch, one of these things is not like the other.

        • captainlezbian@lemmy.world
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          7 days ago

          No you’re both drawn to the local center of gravity which is on a direct line between both bodies’ centers of mass and is proportionally closer to the object of higher mass.

          That’s not really relevant in collided objects per se, but it means you and the earth both pull each other equally to a point that happens to be located ever so slightly away from the center of the earth. Well you would if there weren’t a ton of other gravitational influences including the non uniform shape and density of the earth that make you basically rounding error in terms of gravitational force. But you do impact it

  • TrickDacy@lemmy.world
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    9 days ago

    Nope. Gravity goes both ways. Actually it’s the curve of space time pushing you toward another mass. And you can only overcome because your mass is puny next to the earth.