Post AT0qUf929PL2RBYgPA by CassandraZeroCovid@mastodon.social
 (DIR) More posts by CassandraZeroCovid@mastodon.social
 (DIR) Post #AT0ooUOHdyiCy419wO by adamasnemesis@social.adamasnemesis.com
       2023-02-24T18:02:17Z
       
       0 likes, 1 repeats
       
       Might an advanced civilization use gravitational catapults to launch worldships...and might we be on a higher-dimensional version of one? Wild thoughts, but eh, why not?Read more at my #blog: https://www.adamasnemesis.com/2023/02/24/are-we-in-a-higher-dimensional-worldship/This post's featured image is "Gravitational catapult between the galaxies", by me.#spaceflight #interstellartravel #relativisticspaceflight #relativity #gravity #gravitationalcatapult #physics #universe #cosmos #science #worldships #spacehabitats #antigravity
       
 (DIR) Post #AT0qUf929PL2RBYgPA by CassandraZeroCovid@mastodon.social
       2023-02-24T18:21:03Z
       
       0 likes, 0 repeats
       
       @adamasnemesis "Imagine if that’s how we make first contact with aliens: a cosmic wilderness lulls us into thinking we’re alone, and then bam, a starship bigger than our whole planet pops out of nowhere."
       
 (DIR) Post #AT1Gox2puEq2YMzj6W by Dogzilla@mastodon.sdf.org
       2023-02-24T23:15:48Z
       
       0 likes, 0 repeats
       
       @adamasnemesis This is predicated on manipulating a “gravitic field”, in turn based on an equivalence between electromagnetic and gravitational “fields”. Electromagnetism is generated by the motion of a charged particle through a magnetic field. There are no gravitationally charged particles - gravity is just the curvature of spacetime, so no way to create a gravitic chargeI don’t think this is hard sci-fi: it’s just a another version of a “warp drive”
       
 (DIR) Post #AT1LU4yjiEsGqiwZSy by adamasnemesis@social.adamasnemesis.com
       2023-02-25T00:08:32Z
       
       0 likes, 0 repeats
       
       @Dogzilla If you bother to read the link, this was proposed totally seriously by Robert L. Forward, who was a real physicist. You're seriously saying he didn't know what he was talking about? 🙄
       
 (DIR) Post #AT2AbaMgVrEvsiTwa8 by JohnLoader6@masto.ai
       2023-02-25T09:41:06Z
       
       0 likes, 0 repeats
       
       @adamasnemesis One firm is using a sort of slingshot to launch rockets from Earth
       
 (DIR) Post #AT2Luj6nKLEjzuNZbM by smassimo75@mastodon.uno
       2023-02-25T11:47:11Z
       
       0 likes, 0 repeats
       
       @adamasnemesis Are you speaking about this ?  https://www.researchgate.net/publication/234295974_The_cable_catapult_-_Putting_it_there_and_keeping_it_there
       
 (DIR) Post #AT2T4oaCWnNzYCtKTY by theloneapple@mastodon.cloud
       2023-02-25T13:08:10Z
       
       0 likes, 0 repeats
       
       @adamasnemesis Some advanced civilizations Elon Musk created our universe for fun.
       
 (DIR) Post #AT2WZYp3TTtNVhBwI4 by adamasnemesis@social.adamasnemesis.com
       2023-02-25T13:47:24Z
       
       0 likes, 0 repeats
       
       @smassimo75 No.
       
 (DIR) Post #AT2aCpKUKrO9rVJFFg by hal_canary@mastodon.sdf.org
       2023-02-25T14:27:39Z
       
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       @adamasnemesis Re: worldships, I've been thinking about the intermediary level of that, designed for unaltered humans (although our society and culture needs to advance).The standard space habitat <https://halcanary.org/vv/2020/07/14/3017/>, designed for a megacity population in a 99% closed ecology.