• whereitsat@lemmy.zip
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    3 hours ago

    what else would matter look like in space? isn’t it all black–all dark?

    this is just an uneducated observation but modern geniuses don’t accomplish much other than coming up with buzzwords.

    • anugeshtu@lemmy.world
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      15 minutes ago

      Yeah, let’s leave it to Metal fans. They would maybe call it “nothing else matter”

    • The D Quuuuuill@slrpnk.net
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      2 hours ago

      so the other comment reply does nothing to explain, but there’s too much mis- and disinformation that people consume and too much prideful ignorance to just let a comment sit like this as the top of the “hot” algorithm to not give people an entry point to enlighten themselves.

      dark matter is not named for its undetectibility within the visible light spectrum. you are correct that we cannot detect much matter within the universe based on the visible light spectrum. dark matter is named based on that we cannot detect it at all. dark matter is more the answer to a question we don’t yet know how to answer. there are a lot of behaviors out there in the cosmos that cannot be explained through the simple interactions between matter that we are able to observe, leading many scientists to theorize that much of the universe, around 70% of it, is made of a form of matter that interacts with the kind of matter we are by just kinda… pushing it away (not like anti matter which causes waveform collapses when interacting with the kind of matter we are).

      a competing theory for why the cosmos acts the way it does is because space time itself is expanding as a result of our observable universe existing on the inside of a black hole. my estimation is probably that both explanations contain part of the truth and that the whole truth is that both dark matter exists and our universe is inside a blackhole. if you want a real mind trip, i suspect our universe is inside a blackhole inside our universe, and that every blackhole in the universe contains a universe. filled with blackholes with universes, including the very same universe that contains that blackhole

      • Simulation6@sopuli.xyz
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        1 hour ago

        Dark energy is used to explain the rate of expansion of the observable universe. Dark matter is used to explain observed anomalies in the rotations in some galaxies. For general relativity and Newtonian gravity math to work, there has to be something we can’t observe. Einstein had added a cosmological constant to relativity, that he later called his biggest mistake, but turned out to be very useful.

    • Krudler@lemmy.world
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      3 hours ago

      I will delete my reply if you delete your comment, you sound extremely foolish and this is embarrassing for you.

  • ZoteTheMighty@lemmy.zip
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    13 hours ago

    Fritz Zwicky was truly insane. He claimed the sun was powered by dwarves and that the solution to interstellar travel was to move our entire solar system from place to place.

    • David From Space@geostationary.orbiting.observer
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      6 hours ago

      I mean, moving the whole solar system just makes sense at a certain level of energy expenditure - if you are already generating enough power to do interstellar travel, might as well take the whole house with you. Sucks if you live here and don’t like the new travel direction of the system though, I guess. Find a new solar system to live in at that point?

    • OhStopYellingAtMe@lemmy.world
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      12 hours ago

      I think he called them “nuclear goblins,” not dwarves. And they weren’t actual mythological creatures, just a silly nickname for “bodies of nuclear density” which floated around inside stars, and exploded when they got too far out from the core, causing solar flares.

      The concept of moving the entire solar system is fascinating though. It was used in Larry Niven’s “known space” series of novels.

  • Rusty@lemmy.ca
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    24 hours ago

    It’s just a variation of the old physics joke about a Spherical cow.

    • agamemnonymous@sh.itjust.works
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      14 hours ago

      Not really? The joke about the spherical cow is about reducing a problem to a hyper-simplified version to make computation easier at the cost of accuracy.

      The spherical bastard is more a joke about mathematical projections, since a sphere looks the same from any angle.