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Cake day: June 12th, 2023

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  • niktemadur@lemmy.worldtoxkcd@lemmy.worldxkcd #3141: Mantle Model
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    7 days ago

    I have a hard time wrapping my head around the concept of how an observer is inextricably intertwined with the object/particle being observed, as part of the framework for the equations to flow, so to speak.

    Then there’s the fact that Newton’s equations assume an infinite speed of light, until physicists of the 19th century that pinned it down, then Einstein established it as a constant.
    If you try and use lightspeed at the atomic level, many values blow up to infinity, the math stops working, the answers become like static noise.

    Recently I found out that Schrödinger’s famous equation is written in the framework of classical, newtonian physics, not in quantum terms. Like using a star screwdriver to flat screws, yet it seems to do an admirable job up to a point. And you have a whole lot of infinities to sweep under the rug and ignore, what is it called, Normalization or Renormalization? One of the two.

    It’s all incredibly complex and abstract, the numbers being measured by the guys in the lab were strange to the point of absurd, and if you think it’s weird for us now, imagine how they saw it then.

    So yeah, the math says that the observer is not passive from afar, the observer is part of the equation itself of what is trying to be measured.
    Then the closer you look, the blurrier things get, like a greased pig you can’t get it to hold still, not even for an instant, particularly at the smaller scales, things don’t behave the way they do at our sensory and mental level. Things behaving as if going backwards through time. Particles and anti-particles popping in and out of existence. Particles transforming into other particles. Particles going through walls. The list goes on and on and on.

    Weird stuff has to be conjured up to try and make any sense of this.
    Light or electrons as amplitudes of probability waves. Axes of imaginary numbers, eigenvalues in Hilbert spaces, wave-particle duality, etc.

    Reality is extraordinary, it will keep on always surpassing our expectations and imaginations. It just keeps on happening this way, wherever we poke at.













  • niktemadur@lemmy.worldtoScience Memes@mander.xyzwell?
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    2 months ago

    But then there’s the guy who added all the mass and energy of the observable universe, calculated its’ Schwarzschild Radius, and came up with 13.8 billion light years.

    There’s also how our observable universe’s Hubble Horizon acts like a black hole event horizon, the way in which even the speed of light is insufficient to escape beyond.

    A lot of the math inside a black hole is eerily similar to the math of our own horizon, as traced by the age of the universe plus the speed of light.


  • I watch a lot of science channels and videos on YouTube, there’s just so much extraordinary content out there, going deep into the math and formulas of cosmology and physics.

    Sooner rather than later, the algorithm started pushing this woman’s videos on my homescreen. She most definitely leans towards the clickbait titles and bombastic controversy, two things that I hate, so it was again time to take out the digital machete and hack away at the algorithm, as I do nearly every day. But then she just keeps on popping up in other people’s videos and podcasts, some trustworthy content creators seem to have a high regard for her academic work.

    But just like assholes like James Woods or Joe Rogan have made themselves unbearable for me, even retroactively, just their presence and voice take me out of whatever I’m watching, put me in a bad mood, so too it is with Hossenfelder. In an age of the digital smorgasbord, a never-ending stream of science and math educational content of a high level and mind-blowing quality, I can survive and thrive just fine while avoiding the assholes.


  • niktemadur@lemmy.worldtoScience Memes@mander.xyzsalty child
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    2 months ago

    Take it one level lower on down, when you’re the size of an electron, orbitals are wild, turbulent places, sometimes sharing electrons which also often get zapped by light, so they jump to a higher orbital, then they randomly spit out that photon and reappear back down… all the orbitals of a molecule violently jiggling all the time.

    Take photosynthesis. Simply put and to oversimplify but it’s essentially accurate, a photon hits an electron bullseye in a leaf molecule, which sets off a wave of energy in motion, breaking up molecules, reassembling them into sugars and waste product (oxygen).
    A red photon raises an electron one orbital up, that sets off one process at a certain level of energy. A blue photon raises an electron two orbitals up, that sets off another process at twice the energy level.





  • niktemadur@lemmy.worldtoScience Memes@mander.xyzoops
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    2 months ago

    Yeah, it’s sooooo funny… it’s heeeeeeel-larious! I don’t know about you, but I for one can’t stop laughing!

    The way language is used or abused creates patterns in the mind.
    I strongly suspect that this way of using language is not healthy at all, for an individual nor for a community.