The Weird Weakness of Gravity - Ask a Spaceman!

Ғылым және технология

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How did gravity get so ridiculously weak? Could it be related to extra dimensions? What does string theory and the concept of the “bulk” have to do with it? I discuss these questions and more in today’s Ask a Spaceman!
Follow all the show updates at www.askaspaceman.com, and help support the show at / pmsutter !
Keep those questions about space, science, astronomy, astrophysics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE! Music by Jason Grady and Nick Bain.
00:00 - The Incredible Weakness of Gravity
02:39 - What the Higgs is Going On?
09:58 - Who wants some extra dimensions?
14:36 - Experimental Evidence

Пікірлер: 53

  • @DanielSodkiewicz
    @DanielSodkiewicz2 жыл бұрын

    I enjoy your content a lot. Funny, informative. Thank you.

  • @CepheiVV
    @CepheiVV2 жыл бұрын

    Thanks Paul! Appreciated

  • @velfad
    @velfad2 жыл бұрын

    Anthropic principle. I have no problems with it unless it stops some research. But some things are just random.

  • @chrissscottt
    @chrissscottt Жыл бұрын

    A mystery wrapped in a dimensional riddle. Still hurts when I fall over though.

  • @oisnowy5368
    @oisnowy53682 жыл бұрын

    Gravity is weak. It is also patient. How well could the other three forces help a human escape on its own from the planet's gravity well? And where exactly does the gravity well of our planet even end?

  • @DerMaikNichJa
    @DerMaikNichJa2 жыл бұрын

    So Gravity is so weak because it has not learned (yet) how to cheat? Fascinating Topic, thank you Spaceman!

  • @cheesypotat0es
    @cheesypotat0es2 жыл бұрын

    This is neat.

  • @kenhoffman5363
    @kenhoffman5363Ай бұрын

    This discussion of why gravity is so weak ignores its need to be different from the other forces. The other forces are all about what is happening on the atomic scale. The strong nuclear and weak nuclear forces are at that smallest scale involving particles that have mass and cannot venture beyond that. Electromagnetism is also happening at a small-scale involving mass. However, gravity is a force that increases with the number of accumulated particles involved. In Earth, it functions as the synergistic collective sum of the gravity of 10^50 particles. So, if it had any seemingly effective strength at the atomic scale, even though it has some, it would wind up being way too strong as the accumulated sum of a planet. It seems it is Gravity that has managed to cheat the Higgs field so that it can do its job effectively at large cosmic scales of planets, galaxies, and galaxy clusters. Otherwise, you would have trouble lifting your coffee cup.

  • @soleraverde
    @soleraverde2 жыл бұрын

    Does gravity can be the "movement/flow" of spacetime from the "empty" space (expanding universe) to the space where the mass is (contracting universe)?

  • @huanhuan7790
    @huanhuan77902 жыл бұрын

    Ouestion: I am currently studying data science but with concerntration on astrophysics. Will it be a problem for me to join on astrophysics for post graduate?

  • @donsample1002
    @donsample10022 жыл бұрын

    When you started talking about how well we knew the masses of the W and Z bosons, I thought you’d be going into the Fermilab results which gave the W boson a different mass.

  • @donsample1002

    @donsample1002

    2 жыл бұрын

    …with a tie in to the slogan on your cup.

  • @donholmstrom6482
    @donholmstrom6482 Жыл бұрын

    I'm sorry but every time I hear a discussion where we talk about Gravity as a force, I get dissonance with Einstein's space-time fabric and I just can't reconcile.

  • @lexluthermiester
    @lexluthermiester2 жыл бұрын

    @Paul M. Sutter 0:09 Um, you're forgetting one, and I'll give you a hint: We can't count without it.

  • @mdavid1955
    @mdavid19552 жыл бұрын

    Excuse for bigger particle collider?🤔

  • @madderhat5852
    @madderhat58522 жыл бұрын

    Is there a hypothetic argument for a second dimension of time? Time spreading perpendicular to the arrow of entropy. Gravity is the warping of spacetime from Einstein.

  • @googlemechuck4217
    @googlemechuck42172 жыл бұрын

    Geometric Unity!

  • @marceljanssens5935
    @marceljanssens59352 жыл бұрын

    National anthem for gravity: Bohemian Gravity by acapella science!

  • @ohasis8331
    @ohasis83312 жыл бұрын

    Don't crow about beating gravity just yet - try holding that same mug for a few hours and see who wins.

  • @jannikheidemann3805

    @jannikheidemann3805

    2 жыл бұрын

    Entropy wins. Entropy always wins in the end.

  • @drex23100
    @drex231002 жыл бұрын

    It is possible there may NEVER be a quantum theory of gravity because gravity (and time ) are recessive in the quantum field.

  • @shanent5793
    @shanent5793 Жыл бұрын

    "a little bit of a fuzzy definition" is not a good start

  • @richard--s
    @richard--s Жыл бұрын

    So, we are in a simulation? ;-) But what kind of physics does work for the simulation engineers? What's their physics? A simulation theory just pushes the definite answers further out, it's a kind of a lazy idea ;-) It's not easy... So, many thanks for your video!

  • @gregme5601
    @gregme56012 жыл бұрын

    Question: During a Supernova isn't gravity a major player in that sequence? Gravity finally getting its way to form a Black hole. Is that an exception for gravity? Isn't gravity super strong during this?

  • @theFLCLguy

    @theFLCLguy

    2 жыл бұрын

    Kinda, a black hole forms when gravity finally gets stronger than all other forces. It isn't that gravity gets stronger, it's that it gets more concentrated to the point becomes the dominant force.

  • @foobargorch
    @foobargorch2 жыл бұрын

    why is it called the higgs mechanism and not the higgs force?

  • @foobargorch

    @foobargorch

    2 жыл бұрын

    (my best guess is that the definition of "force" isn't "interaction" but rather "explains acceleration")

  • @BigNewGames
    @BigNewGames2 жыл бұрын

    Energy is the action, gravity is the reaction. Energy is the action, the warping of spacetime is the reaction. Energy is the action, the expansion of space is the reaction. Energy is the action, dark matter is the reaction. Energy is the action accelerated expansion of space is the reaction at extreme distance. Gravity is a reaction, not a force or action. In fact, the only action really taking place throughout the universe is energy. I would assume that the type 1 civilizations throughout the universe already know how to make energy from matter without moving parts, over-unity of energy.

  • @mrmotl1

    @mrmotl1

    Жыл бұрын

    Yes I came up with this idea recently that relates to this idea and it's that gravity isn't so much a force as it is the reaction as you said, but it's the falling into place amongst it all and it's weighted balance in the aftermath. Ultimately it's all the forces combined and the relational effect of all the friction they produce as well as the added up effect of those opposing forces of nature all around you neutralizing all potential by adding themselves to the pile and seeing how deep they get or how high they stack in the general resolution of it all. It's basically the coherent field alignment of the magnetic field effect on all the surface layers it develops over time and its atmospheric filters ground potential within its active noise interface above its general surface.

  • @j-frolland4200
    @j-frolland42002 жыл бұрын

    What about gluons? Doesn't the Higgs boson only cover like 5% of the mass of particles? And it's not weird. You just need a bit of philosophy, like the anthropic principle. Or said simply, we are here, and we observe. How could the universe be anti-observer and still be observed? Tree falls in the forest and no one hears it and all. Dumbing things down won't help anyone, neither will occulting them.

  • @bizpo2713
    @bizpo27132 жыл бұрын

    Gravity is not a force. There is no "pull" - your coffee cup is following Newton's laws - on earth space time is just warped.

  • @theFLCLguy
    @theFLCLguy2 жыл бұрын

    The issue in physics is the reduction to only three spatial dimensions. When really it's all about perspective. The number of dimensions a system has follows the inverse square law. Each dimension is a unique possible state/location. This is why things look more chaotic the smaller you go because the number of possible dimensions shrinks. Till the spatial dimensions drop below one dimension, which is the Planck scale. Below that is the vacuum which itself is made of sub dimensional fluctuations that are made and amplified by gravitational waves.

  • @larryyoung5757
    @larryyoung5757 Жыл бұрын

    It’s perfect for Homo sapiens.

  • @ARWest-bp4yb
    @ARWest-bp4yb2 жыл бұрын

    Gravity is misguided! 🤣

  • @theFLCLguy
    @theFLCLguy2 жыл бұрын

    Question, if the speed of causality was to be slowing down, could you tell the difference between it and an expanding universe? Because if you can't then couldn't that be what dark energy is? And could gravity be the synchronization of vibrations through space-time as gravitational waves? The force carrier would be virtual particles. And the reason it's so weak is interference from other objects. It's why the vacuum seems to have so much energy.

  • @alnilam2151
    @alnilam21512 жыл бұрын

    Thats' so GRRR infuriating is it knot? ;

  • @CepheiVV
    @CepheiVV2 жыл бұрын

    If time is just entropy, and space is an illusion (my belief). Is gravity the curvature of entropy and illusion?

  • @theFLCLguy

    @theFLCLguy

    2 жыл бұрын

    Time and space being separate is the false. Increasing distance is the same thing as slowing down. And the reverse is true, decreasing distance is the same as speeding up. Time itself is the illusion. Our limited perspective due to taking time to process information keeps us from seeing more than a moment of time. If you could somehow see all of existence it would look kinda like one of those illusions of a still image that appears to move but it's just your perspective that's changing.

  • @CepheiVV

    @CepheiVV

    2 жыл бұрын

    @@theFLCLguy I believe that the whole existence has already happened, and as you suggest, past, present and future are part of the same object, and it's our brain the one feeling that time is passing.

  • @mikehoman7351
    @mikehoman7351 Жыл бұрын

    Gravity is not weak

  • @fcalin21
    @fcalin212 жыл бұрын

    Stop saying that are 4 forces. Gravity is not a force so it has no particle carrier.

  • @ChinnuWoW

    @ChinnuWoW

    2 жыл бұрын

    That would violate the principle of locality. Gravity absolutely IS a force. Spacetime doesn't curve by itself.

  • @fcalin21

    @fcalin21

    2 жыл бұрын

    @@ChinnuWoW The scientist contradict you. "Spacetime doesn't curve by itself." - well, it is because of energy or matter.

  • @ChinnuWoW

    @ChinnuWoW

    2 жыл бұрын

    @@fcalin21 It takes force to curve something. To force objects in a certain direction. That's a force created by mass.

  • @fcalin21

    @fcalin21

    2 жыл бұрын

    @@ChinnuWoW I do not agree.

  • @ChinnuWoW

    @ChinnuWoW

    2 жыл бұрын

    @@fcalin21 ...okay.

  • @MoRiley9
    @MoRiley92 жыл бұрын

    What happened to the dirty blackboard? I like the messiness, kinda’ like the universe.

  • @ChinnuWoW

    @ChinnuWoW

    2 жыл бұрын

    and your life.

  • @wardelllindsay8677
    @wardelllindsay86772 жыл бұрын

    Universe is Quaternion Space! Copyright 2022 Wardell Lindsay E=[ -mGM/r, cP]=[-mc^2, cP]=[-cp,cP]

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