With circular motion, you can spin threads, mill grain, move a wheel forward, drill holes, bring water upwards, generate electricity spinning turbines, create gravity, defeat gravity. It’s just too OP

  • charokol@lemmy.zip
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    12 days ago

    If you use Circular Motion with both fists perpendicular to your chest in a vertical orientation, with both fists maintaining a 180° offset from the other’s circle, you can look like an old-timey boxer

  • isleepinahammock@lemmy.blahaj.zone
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    12 days ago

    Theoretically, it’s possible to use circular motion to build a train to orbit. Literally, you could have a floating platform suspended above the Earth’s surface and a train line running right up to the thing. One could have a stationary ring circling the entire planet that you could ride a train right up to. Hell, with sufficient mastery of circular motion, you could build a structure that allowed you to sail a boat to the Moon.

    If you’re going to quote orbital mechanics as to why this is impossible, you don’t know as much about orbital mechanics as you think you do.

      • isleepinahammock@lemmy.blahaj.zone
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        11 days ago

        What I’m describing is actually possible with ordinary materials, unlike the space elevator. This is less science fiction than a space elevator. Steel is good enough. Oh, and the throughputs possible for systems like this make a space elevator look like a toy.

        I’m referring to concepts like the orbital ring.

        You could absolutely build a train to space using such active support methods. And a more fanciful and impractical version is vast water-filled structures that allow one to literally a sail a boat to the Moon. I doubt someone would actually go to the trouble of building such a massive and impractical construct for such a silly purpose. But in principle it is possible.

        • MonkderVierte@lemmy.zip
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          11 days ago

          I do think you need active components to keep it stable. Might also be in the range already, where gravitation itself rips it appart.

          • isleepinahammock@lemmy.blahaj.zone
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            11 days ago

            I don’t think you understand the concept. “Gravitation itself rips it apart?” The whole idea is based on the idea of harnessing gravity and orbital mechanics.

            • MonkderVierte@lemmy.zip
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              11 days ago

              I think i do? But earths gravitational field is a potato, which is why constellation satellites like GPS and Starlink need to adjust now and then. And even if it were a perfect sphere, there’s still the moon and the other planets pulling on it. Look at Jupiters Lagrange points for a example how wobbly space around the sun actually is:

              L3, L4 and L5 are fields of pebbles (asteroids) Jupiter pushes/pulls around it’s orbit by deforming space.

              About ripping apart: no matter how high the tensile strength of the material; scale it up enough and it’s a sandcastle. Wikipedia has a small table here for the lightest materials and i think Steel is around 100 km. That combined with the potato grav field of earth and it breaks apart.

              • purple_drank@lemmy.world
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                9 days ago

                are you saying the large extent of the two Trojan fields shows “wobbliness” of space? because you’d expect all the debris to be right at the exact L4 and L5 points?

                if so - no, because a LaGrange point is (despite being massless itself) something a light body can have a stable orbit around. it’s not just the only stable point, it allows a large zone for stable orbits.

              • isleepinahammock@lemmy.blahaj.zone
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                11 days ago

                Ok I’m sorry. Yes, it likely would require some minimal active control to maintain stability. You have a point about perturbations from other bodies. But the Trojan asteroids and Lagrange points have minimal effect. And it’s not like the gravitational field around the Sun actually changes that much, percentage wise, unless you’re right up close to the planets. The Trojans and Lagrange points are just examples of locations where objects gently placed in certain locations can maintain stability.

                Jupiter’s Hill Sphere has a radius of 50 million kilometers (actually much smaller than the outer gas giants.) Its orbital radius is more like 780 million km.

                Now, this does mean it would be quite difficult to build a Solar System-sized orbital ring right near the orbital path of gas giant, or any other planet. You could build a ring around Jupiter, but building a Solar-centric ring right near Jupiter’s orbit would be a problem.

  • Tattorack@lemmy.world
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    12 days ago

    This sounds like something a character from Dr. Stone would be amazed about. XD

    But yes, I agree.

  • Krudler@lemmy.world
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    12 days ago

    Smoke some herb and get ready for this, all motion is curved, there’s no such thing as straight motion. The summation of movement can be said to be linear.

      • kn33@lemmy.world
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        12 days ago

        Well, you’re wrong, but okay.

        Historically, the two uranium enrichment methods that have operated on a commercial scale are gaseous diffusion and the gas centrifuge. Gaseous diffusion was the first commercial enrichment process, but it is energy-intensive and has been replaced by centrifuge technology in commercial use.[5] The last large commercial gaseous diffusion plant, the Paducah Gaseous Diffusion Plant in the United States, ceased enrichment operations in 2013.[22]

        In the mid-2020s, commercial uranium enrichment is performed by gas centrifuge plants

        https://wikipedia.org/wiki/Enriched_uranium#Enrichment_methods

      • Wildmimic@anarchist.nexus
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        12 days ago

        Nope, separation between different Uranium isotopes is achieved by centrifugation (of a gaseous form). Pretty much every time where you have something that has identical chemical/physical properties outside of a differing molecular weight, centrifugation is the way to go if you want to do it quantitatively.

        • DeathsEmbrace@lemmy.world
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          11 days ago

          Yeah that’s after the first one was diffusion.also that’s misinformation it can be different molecular weights and different compounds while still being centrifuged into different layers most of biology does this to separate the bio mass. It doesn’t have to be similar it can be different , as long as the weight is different. Impurities can be removed this way as well.

          • Wildmimic@anarchist.nexus
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            11 days ago

            After diffusion you get a mixture of the isotopes, which is useless by itself. You have then have to separate these very similar atoms by atomic weight, and for that you need centrifuges, because the only difference between those isotopes is mass (which causes diffences in a flight path in a curve, similarily to how GC/MS works), which means that any other separation method will not enrich the isotope you are looking for; U-235 and U-238 diffuse identically, or at least so very much identically that you can’t make an industrial process out of the difference.

            • DeathsEmbrace@lemmy.world
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              11 days ago

              No this is new technology I’m talking about the very beginning. Centrifugals for Uranium Enrichment is the new and current method. When they started out they used multiple diffusion chambers. Look at the tube alloys project and then the manhatten project which is what all this eventually became. It started with diffusion.

  • Vanth@reddthat.com
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    12 days ago

    Wait’ll you hear about levers, wedges, incline planes, and screws!

    (Websearch simple machines)