• pseudonym@monyet.cc
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    17 days ago

    Wtf is dark matter. There’s something out there that makes gravity not work the way we expect on a very large scale, and “dark matter” is a theoretical substance that makes the math work out properly. But the fact that such a huge portion of the galaxy’s mass is this hypothetical, undetectable thing makes it seem very hand wavy. The last experiment to try to detect dark matter that I’m aware of concluded with “we successfully didn’t detect anything” 😞 having to deal with dark matter feels like trying to study atoms before the discovery of the neutron. I hope we figure this out in my lifetime.

  • Vanth@reddthat.com
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    17 days ago

    In the depth of pandemic lockdown, after my roommate moved out to return closer to family, I was in my house alone for a month straight. One day I hear the tea kettle whistling on the stove.

    It was the middle of summer, I hadn’t made tea in weeks. Maybe I bumped the stove control? But there shouldn’t have been any water in the kettle. And I hadn’t been in my kitchen for over an hour and it wouldn’t have taken that long for the water to boil had I put it on and just forgotten about it somehow. I keep my doors locked.

    Idk, the only thing I can think of is the isolation really got to me that day, I put the kettle on and completely forgot I had done it five minutes later.

  • nevemsenki@lemmy.world
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    17 days ago

    Where did the matter/energy for Big Bang come from? On that note, what is outside the border of the universe?

    • linearchaos@lemmy.world
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      17 days ago

      And then where did they matter and energy come from for that universe. It’s turtles all the way down…

    • mechoman444@lemmy.world
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      16 days ago

      This question actually doesn’t make sense, it’s kind of a paradox in the same way the question of what happened before the Big bang is also strange in the sense that the universe and reality didn’t exist in a form with causality in effect.

      So asking a “before” question in reference to “before” time even started is paradoxical in and of itself. Since “before” wasn’t even a concept in existence.

      Which is why scientists don’t really worry about anything “before” the Big bang.

    • jpreston2005@lemmy.world
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      16 days ago

      The Universe is expanding, rapidly from the big bang still. At some point, it will slow down, and then stop. Then begins a catastrophic cycle of collapse with massive black holes coalescing into one universe eating black hole that compresses every bit of matter into a single point of almost infinite density. At this point the black hole destabilizes, and all of the stored energy is released in one colossal explosion. A Big Bang of sorts.

      The Universe is an Ouroboros.

      • Iapar@feddit.org
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        16 days ago

        Sometimes I think our universe is just an explosion in a big ass combustion engine.

        So everytime I drive a car I create and destroy countless universes just to get some nuggets. Worth it.

      • GrayBackgroundMusic@lemm.ee
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        15 days ago

        At some point, it will slow down, and then stop

        All of the current scientific evidence disagrees with this. 1) There is a velocity such that you can go faster than gravity will be able to slow you down: escape velocity. So, it’s possible even without any new, weird physics. 2) The hubble constant shows that the universe isn’t slowing down, but the opposite: it’s accelerating. Physics doesn’t know why (see Dark Energy). It’s physically measurable that things farther away are accelerating even faster scaling with distance.

    • ooli@lemmy.world
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      15 days ago

      Outside: there is a theory of other universes outside . Which would explain the increasing rate of expansion in place of dark energy

  • frankPodmore@slrpnk.net
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    17 days ago

    Whether or not George Mallory summitted Everest.

    Mallory was a great climber. People who knew him think he had the ability. Another member of his expedition saw Mallory and his partner, Andrew Irvine, close to the summit, but not close enough to be certain whether or not they made it.

    Neither man returned from the mountain. Mallory’s body was later found, many decades after he died. but Irvine was never seen again, dead or alive.

    There are various other bits of circumstantial evidence, but the fact is we’ll simply never know for sure. I like to think they made it.

    • SanguinePar@lemmy.world
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      17 days ago

      What’s the mystery with this one? It’s a very interesting event, but isn’t it generally pretty well understood?

    • kurcatovium@lemm.ee
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      16 days ago

      I’ve read interesting conspiracy, that Tunguska incident overlaps exactly with Nicola Tesla’s attempts to wireless transfer of energy. Was an interesting idea and read, even though very unlikely to be based on real event.

  • cheese_greater@lemmy.worldOP
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    17 days ago

    How does the Universe expand? Isn’t the Universe the container space of all that which exists, where does it expand to?

    • Chee_Koala@lemmy.world
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      16 days ago

      Why is there even an edge? I’m already mortal, why does my spacetime need hard limits too?? It’s just cosmic baloney man.

      • Ænima@lemm.ee
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        15 days ago

        There is no edge. Just the farthest back in time we can see because of how long light takes to reach us. It’s constantly expanding not because it doesn’t exist but because we can see more of the light.

        I suspect we don’t know as much as we think we do about the way the universe works. Once we figure out the missing info, it will unlock a lot more than just the forces at play.

  • weariedfae@lemmy.world
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    17 days ago

    Not exactly the prompt but I used to be hung up on The Boy in the Box mystery but I’m happy to report his identity has been found. His name was Joseph Augustus Zarelli.

  • DirigibleProtein@aussie.zone
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    17 days ago

    Why aren’t the basic laws of mathematics clean round numbers? Why are pi and e irrational? What secret is hidden down in the depths of these numbers?

    • linearchaos@lemmy.world
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      17 days ago

      It seems to me that the concept the ratio of the circumference of a circle to the radius is a finite value. It’s cool that it turns out to be an irrational number for us but I think that’s more a statement of how we handle math than some mystical thing.

    • LouNeko@lemmy.world
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      17 days ago

      There a infinitely more irrational numbers than rational numbers, so if one were to search for a special number like π or e, they are more likely to find them to be irrational than rational. It would be instance coincidence if those numbers would be something nice and even. And since almost everything in math is derived from either π or e and you can’t simply divide or multiply away irrationality (except with another irrational number) this irrationality tends to stick around. We essentialy have a π centric number system inside the decimal system, that’s why π gets its own symbol. No mathematician ever writes out π as a 3.1415…, so for all that matters the symbol π is nice and even.

  • linearchaos@lemmy.world
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    17 days ago

    I’m kinda partial to the fine-structure constant

    Fine-Structure Constant (1/137): This dimensionless constant, approximately equal to 1/137, is crucial in quantum mechanics and electromagnetism. It characterizes the strength of the electromagnetic interaction between elementary charged particles.

    It’s weird because the number ends up in places that should be thoroughly unrelated yet that’s one hell of it coincidence.

    https://m.youtube.com/watch?v=RCSSgxV9qNw