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#singularities — Public Fediverse posts

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  1. A technical overview of spacetime singularities from the Penrose-Hawking theorems to the limits of stellar collapse.

    Examine how LQG, string theory, and asymptotic safety resolve the infinite curvature of the classical manifold.

    #cosymorg #science #singularities

    cosym.org/2026/05/12/singulari

  2. A technical overview of spacetime singularities from the Penrose-Hawking theorems to the limits of stellar collapse.

    Examine how LQG, string theory, and asymptotic safety resolve the infinite curvature of the classical manifold.

    #cosymorg #science #singularities

    cosym.org/2026/05/12/singulari

  3. 🚀 Wow, who would've guessed #space-time #singularities aren't just #cosmic #drama queens with an existential crisis? Turns out they're harder to kill than a #B-movie villain with a secret contract. 🕵️‍♂️🔮 #Quanta Magazine’s deep dive into this is like trying to kill a vampire with a plastic spoon. 🥄🧛‍♂️
    quantamagazine.org/singulariti #Magazine #science #exploration #villains #HackerNews #ngated

  4. 🚀 Wow, who would've guessed #space-time #singularities aren't just #cosmic #drama queens with an existential crisis? Turns out they're harder to kill than a #B-movie villain with a secret contract. 🕵️‍♂️🔮 #Quanta Magazine’s deep dive into this is like trying to kill a vampire with a plastic spoon. 🥄🧛‍♂️
    quantamagazine.org/singulariti #Magazine #science #exploration #villains #HackerNews #ngated

  5. The #Zhukovsky #Aerofoil (sometimes transliterated as #Joukowsky from #Russian), is a 2D model of #streamlined #Airflow past a #wing. It uses #ComplexVariable and is an #AnalyticFunction (i.e. #Differentiable everywhere, save at isolated #Singularities). Take a circle in the #ComplexPlane which is not quite centred at the #origin but passes through the #coordinate (1,0) or (z=1+0i).

    #MyWork #CCBYSA #AppliedMathematics #WxMaxima #FreeSoftware #Aeronautics #Aerodynamics #LaminarFlow

  6. The #Zhukovsky #Aerofoil (sometimes transliterated as #Joukowsky from #Russian), is a 2D model of #streamlined #Airflow past a #wing. It uses #ComplexVariable and is an #AnalyticFunction (i.e. #Differentiable everywhere, save at isolated #Singularities). Take a circle in the #ComplexPlane which is not quite centred at the #origin but passes through the #coordinate (1,0) or (z=1+0i).

    #MyWork #CCBYSA #AppliedMathematics #WxMaxima #FreeSoftware #Aeronautics #Aerodynamics #LaminarFlow

  7. @TruthSandwich This forced me back to Hawking and Ellis.

    They say, "One should probably also regard a null geodesically-incomplete spacetime as singular," for a couple of actually not very strong reasons.

    (One is: the Reissner-Nordström solution is (a) singular, and (b) timelike geodesically complete but null incomplete. So let's hope the latter implies the former.)

    And I guess everyone has just run with that ever since (other than Roy).

    #Hawking #Penrose #Kerr #Singularities #Physics

  8. By @startswithabang

    "Although Roger Penrose won the Nobel Prize in physics just a few years ago for demonstrating how black holes come to exist in our Universe, singularities and all, the subject isn't closed. We've never peered beneath the event horizon, and have no way of detecting what's inside. Using a powerful mathematical argument, [Roy] Kerr argues that singularities shouldn't physically exist. He may be right."

    bigthink.com/starts-with-a-ban

    #BlackHoles #Singularities

    @gregeganSF

  9. By @startswithabang

    "Although Roger Penrose won the Nobel Prize in physics just a few years ago for demonstrating how black holes come to exist in our Universe, singularities and all, the subject isn't closed. We've never peered beneath the event horizon, and have no way of detecting what's inside. Using a powerful mathematical argument, [Roy] Kerr argues that singularities shouldn't physically exist. He may be right."

    bigthink.com/starts-with-a-ban

    #BlackHoles #Singularities

    @gregeganSF

  10. We’re approaching an era of British mysteries where a one hour show is 59 minutes and 54 seconds of the detective being demonstrably depressed, and 6 seconds of the crime being solved by pulling up security camera footage from the exact moment and location of the crime. #tv #singularities #television

  11. We’re approaching an era of British mysteries where a one hour show is 59 minutes and 54 seconds of the detective being demonstrably depressed, and 6 seconds of the crime being solved by pulling up security camera footage from the exact moment and location of the crime. #tv #singularities #television

  12. It occurred to me that #resolution of #singularities is very similar to giving birth. The outcome is an exceptional line and a total transform of your life … #mathjoke (with apologies to #algebraicgeometers )

  13. It occurred to me that #resolution of #singularities is very similar to giving birth. The outcome is an exceptional line and a total transform of your life … #mathjoke (with apologies to #algebraicgeometers )

  14. > One of the central problems in fluid dynamics is to figure out if the [Euler] equations ever fail, outputting nonsensical values that render them unable to predict a fluid’s future states.
    > Mathematicians have long suspected that there exist initial conditions that cause the equations to break down. But they haven’t been able to prove it.
    > In a preprint posted online last month, a pair of mathematicians has shown that a particular version of the Euler equations does indeed sometimes fail.
    ...
    > Perhaps in some situations, the equations will proceed as expected, producing precise values for the state of the fluid at any given moment, only for one of those values to suddenly skyrocket to infinity. At that point, the Euler equations are said to give rise to a “singularity” — or, more dramatically, to “blow up.”
    > Once they hit that singularity, the equations will no longer be able to compute the fluid’s flow.
    ...

    Computer Proof ‘Blows Up’ Centuries-Old Fluid Equations
    quantamagazine.org/computer-he

    Very important and interesting work, if you're a mathematician, a physicist or an engineer that has ever 'crashed' with Euler/Navier-Stokes equations.

    #math #physics #fluids #euler #navierstokes #equations #singularities