• Flying Squid@lemmy.world
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    4 months ago

    Dogulas knew:

    I always said there was something fundamentally wrong with the universe.

    – Arthur Dent, the Hitchhiker’s Guide to the Galaxy Radio Series.

  • wabafee@lemmy.world
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    4 months ago

    It’s like the stars when observed at veryx2 far distance they start to behave weird. Blinking a bit faster than normal this might cause the reason for much faster expansion when calculating. Entropy suppose to be improbable right but at far distance all those improbable they probably all eventually add up. Just my thought anyway.

    • BrundleFly2077@sh.itjust.works
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      4 months ago

      Have you ever had a dream that
      That you, um, you had, you’ll, you would
      You could, you do, you would you want you
      You could do some, you…
      You’ll do, you could you, you want
      You want him to do you so much

      You could do anything, do anything
      Have you ever had a dream
      You could do anything, do anything
      Have you ever had a dream
      You could do anything, do anything

    • DarkSpectrum@lemmy.world
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      4 months ago

      The human need for ‘constants’ may already be too simple. Gravity for example is treated as a constant value in Physics but is actually variable.

      • phoenixz@lemmy.ca
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        4 months ago

        I might have missed something, but AFAIK, gravity is the same everywhere. Bigger things, bigger gravity, sure, but two equal things in different locations don’t have different gravitational attraction

  • Dkarma@lemmy.world
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    4 months ago

    It’s almost like cephid variable measurement is a shitty metric for measuring universe expansion because you’re not actually measuring the edge of the universe just the rate of travel of two objects.

  • Ensign_Crab@lemmy.world
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    4 months ago

    “The most exciting phrase to hear in science, the one that heralds new discoveries, is not ‘Eureka!’ but ‘That’s funny…'” --Isaac Asimov

  • EdibleFriend@lemmy.world
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    4 months ago

    No flying machine will ever reach New York from Paris.

    One of the Wright brothers said that. It’s actually my favorite quote because it always reminds me we have no idea what the fuck we’re wrong about.

    • tal@lemmy.today
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      4 months ago

      No flying machine will ever reach New York from Paris.

      googles

      Interestingly, when he wrote that, it was part of a larger quote saying virtually the same thing that you are, just over a century ago:

      Wilbur in the Cairo, Illinois, Bulletin, March 25, 1909

      No airship will ever fly from New York to Paris. That seems to me to be impossible. What limits the flight is the motor. No known motor can run at the requisite speed for four days without stopping, and you can’t be sure of finding the proper winds for soaring. The airship will always be a special messenger, never a load-carrier. But the history of civilization has usually shown that every new invention has brought in its train new needs it can satisfy, and so what the airship will eventually be used for is probably what we can least predict at the present.

      • tal@lemmy.today
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        4 months ago

        Oh, and to provide numbers:

        https://www.distance.to/New-York/Paris

        That’s 5,837.07 km.

        As of the moment, the longest flight by distance:

        https://en.wikipedia.org/wiki/Virgin_Atlantic_GlobalFlyer

        In February 2006, Fossett flew the GlobalFlyer for the longest aircraft flight distance in history: 25,766 miles (41,466 km).

        That’s 7.1 times the Paris-to-New-York flight distance.

        As for time:

        No known motor can run at the requisite speed for four days without stopping…

        The longest flight by time:

        https://en.wikipedia.org/wiki/Rutan_Voyager

        The flight took off from Edwards Air Force Base’s 15,000 foot (4,600 m) runway in the Mojave Desert on December 14, 1986, and ended 9 days, 3 minutes and 44 seconds later on December 23, setting a flight endurance record.

        • VirtualOdour@sh.itjust.works
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          4 months ago

          Plus X-37B has flown round the earth for two and a half years on its longest flight. I know it’s not really what he was thinking about as it’s launched in space from a rocket in orbit but then that just adds even more to the notion tech advancement can be almost impossible to predict.

    • partial_accumen@lemmy.world
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      4 months ago

      At a computer trade show in 1981, Bill Gates supposedly uttered this statement, in defense of the just-introduced IBM PC’s 640KB usable RAM limit: “640K ought to be enough for anybody.”

      • deegeese@sopuli.xyz
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        4 months ago

        That quote was in the context of the 1981 personal computer market, and in that context is correct.

        It’s like a game company CEO saying 12GB of video ram is enough in 2024 so we don’t all need an RTX 4090.

          • Betch@lemmy.world
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            4 months ago

            Holy fucking shit. How have I never seen that version of your flag before? That other one is so boring why isn’t this one flying everywhere?

            • OpenStars@startrek.website
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              4 months ago

              Bold of you to presume that it isn’t!? :-P

              And if you think that’s something, wait till you see our history books:

              img

              And our newspapers:

              img

              (save us from ourselves?)

              • Betch@lemmy.world
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                4 months ago

                Well damn! No wonder you guys are so patriotic! I think I might be a bit jealous of your freedom and your news industry.

                (Wish I could help 😞 I’m just up here in this other little North American country. The really cold one. Just wishing someone saves you from yourselves before that stink moves too far up and gets embedded in the carpet. Unfortunately we’ve been getting more and more whiffs of it in the past couple years. We may need help too.)

                • OpenStars@startrek.website
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                  4 months ago

                  Yeah, it’s spreading all over the world. Again. Except this time we seem to be for rather than against it, for some reason? :-(

  • SapphironZA@sh.itjust.works
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    4 months ago

    This is amazing news. It’s like being shown that Neutonian physics are wrong, so now we have the ability to come up with a better model, then massive advancements in technology can occur.

    • BakerBagel@midwest.social
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      4 months ago

      We did find out that Newtonian physics is wrong. Einstein got famous for it and we now use general/special relativity and quantum phsyics.

      • Rodeo@lemmy.ca
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        4 months ago

        No, Newtonian physics works just fine. Unless things are too big, too small, too fast, or too slow.

        At least that’s what a meme I once saw said.

        • BakerBagel@midwest.social
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          4 months ago

          So it works fine on human scales, but for most of the universe it is inadequate. That means it’s wrong. Quantum physics and relativity are also wrong since he are unable to reconcile the two, despite them both being the best models we have for their respective scales. We have known for the past century that we have only just begun to understand the universe, and that all our models are irreconcilable with each other, meaning that they are ultimately wrong.

          Just because a model is useful doesn’t mean it is right.

          • bloup@lemmy.sdf.org
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            4 months ago

            I agree with the essence of your point but personally I’d never use the word “wrong”, only incomplete. Seems weird to call Newton’s laws “wrong” when the only reason that we are willing to accept GR is that it reduces to Newton.

              • bloup@lemmy.sdf.org
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                4 months ago

                I prefer mine:

                literally every model is a metaphor and not a true representation of the actual phenomenon it’s modeling.

            • Hugin@lemmy.world
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              4 months ago

              It’s not so much that it reduces to Newtonian predictions but that at human scale and energy levels the difference between Newtonian and general relatively is so small it’s almost impossible to tell the difference.

              • bloup@lemmy.sdf.org
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                4 months ago

                What you’re describing is literally what it means for general relativity to reduce to Newtonian mechanics. You can literally derive Newton’s equations by applying calculus to general relativity. In fact, if you ever get a physics degree, you’ll have to learn how to do it.

        • Malfeasant@lemmy.world
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          4 months ago

          Bingo. All models are “wrong”, good models are useful despite being “wrong”. Relativity is wrong too since it can’t account for anything quantum… Relativity isn’t better, it’s just more accurate under certain conditions - but outside of those conditions it’s more complex than it needs to be, and Newton’s models are good enough.

    • KneeTitts@lemmy.world
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      4 months ago

      Neutonian physics are wrong

      Dangerous way of putting that since we have so many easily weaponized idiots who will carry that water, a better way to say it would be “our understanding of neutonian physics is incomplete at the moment”

      • SapphironZA@sh.itjust.works
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        4 months ago

        I agree, it is more accurate that way. English is not my first language, so I missed that detail. In South Africa, we also don’t have a significant anti-science movement, so it does not always occur to me naturally. The scientific approach is generally well respected and understood here.

  • Waldowal@lemmy.world
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    4 months ago

    Why couldn’t this still be “big bang”? Look at a grenade for example. When it explodes, a shock wave expands from it in a near perfect sphere, but the fragments previous packed inside of it explode out at different speeds depending on their mass.

    If you were in the center of that explosion, measuring the speed of fragments traveling away from you, they’d travel at different speeds. Only the initial shockwave would be constant.

    • Lyrl@lemm.ee
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      4 months ago

      This is more like you measure the fragment speeds with both a laser and with radar, and get different readings off the same fragment.

    • rdri@lemmy.world
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      4 months ago

      Maybe because the speed of things is not the same thing as the speed of space expansion.

  • A_A@lemmy.world
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    4 months ago

    The cake BigBang is a lie.
    original source :
    https://iopscience.iop.org/article/10.3847/2041-8213/ad1ddd

    see also :
    https://en.m.wikipedia.org/wiki/Hubble’s_law
    Hubble tension
    In the 21st century, multiple methods have been used to determine the Hubble constant. “Late universe” measurements using calibrated distance ladder techniques have converged on a value of approximately 73 (km/s)/Mpc. Since 2000, “early universe” techniques based on measurements of the cosmic microwave background have become available, and these agree on a value near 67.7 (km/s)/Mpc. (…)
    (…) The most exciting possibility is new physics beyond the currently accepted cosmological model of the universe, (…)

    • arefx@lemmy.ml
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      4 months ago

      Can someone give me the spark notes I started reading but I’ll never get through that or probably even understand all of it

      • VirtualOdour@sh.itjust.works
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        4 months ago

        It’s simple, imagine you’ve got two smart friends that both have an opinion about a TV show you didn’t watch - you can’t tell who is right but the fact they disagree suggests they might be wrong when they say you can’t have flying cars and time travel.

  • I Cast Fist@programming.dev
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    4 months ago

    From my limited understanding, the discrepancy comes from the two ways to measure the universe’s expansion: calculation from cosmic microwave background and calculating a cepheid variable, which uses pulsating stars (pulsars?)

    Isn’t it more likely that one, or both, ways of measuring are wrong? As in, they’re not useful for measuring the universe’s rate of expansion?

    • Cosmic Cleric@lemmy.world
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      4 months ago

      Isn’t it more likely that one, or both, ways of measuring are wrong? As in, they’re not useful for measuring the universe’s rate of expansion?

      Now, scientists using the James Webb and Hubble space telescopes have confirmed that the observation is not down to a measurement error.

      I’m trying to understand the distinction you are making. Could you elaborate?

      • mildlyusedbrain@lemmy.world
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        4 months ago

        Not a scientist but the article seems to mean that they checked that the tools themselves had no defects giving incorrect measurements.

        This comment seems to be questioning the methodology of how we measure the rate of expansion so tackles a different aspect of the conversation.

        But that’s about as much as I can contribute haha

  • ZephyrXero@lemmy.world
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    4 months ago

    Seeing the universe expanding at different rates could just mean we’re not as close to the center as we thought, and the parts further away from the center are moving faster. That’s my layman’s hypothesis though

    • echo64@lemmy.world
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      4 months ago

      There is no center of the universe fwiw, there is no middle everything is expanding out from. Just a substrate that exists everywhere that inflates

      • VirtualOdour@sh.itjust.works
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        4 months ago

        It’s fun to think it might just start going backwards or something because we have literally no idea what is actually happening, like it’s very possible we’ll never actually be able to see or measure anything outside the universe but there could be all sorts of things going on.