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  • slazer2au@lemmy.world
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    4 days ago

    What kind of shower do you have that allows you to conduct observations in space? Not to mention write up a paper on it.

  • Karu 🐲@lemmy.ml
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    4 days ago

    As far as I know (I’m not a physicist), it’s not all that clear that gravity is caused by a particle. It makes sense to assume it is, because of parallelisms with the other fundamental interactions, all of which (other than gravity) are caused by particles that have been thoroughly observed and studied.

    So we kinda know what a graviton would be like and what to look for, but so far it hasn’t been found, and its existence hasn’t been conclusively determined. There are some alternative hypotheses that in fact gravitons don’t exist at all, and gravity is just a consequence of the shape of space-time, which I think is what’s going on with black holes.

    (source: trust me bro I saw it on the Internet)

    • intensely_human@lemm.ee
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      3 days ago

      Or maybe they do interact with each other and that’s how they escape: they’re forced out by interactions with all the other gravitrons in the black hole.

    • elidoz@lemmy.ml
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      2 days ago

      it can be

      edit: I just noticed this was a link to an article, my bad

  • dan1101@lemm.ee
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    3 days ago

    I thought the current thinking is that gravity is bending and differences of spacetime?

    • I'm back on my BS 🤪@lemmy.autism.place
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      3 days ago

      I think that’s the understanding of gravity for sizes of an atom and larger, which fall under the theory of relativity. In relativity, gravity is not a force; spacetime is a fabric that is bent by the presence of matter. For things smaller than an atoms, the leading theory is quantum mechanics. Quantum mechanics hasn’t definitely explained gravity. One of the leading subtheories to quantum mechanics uses a hypothetical particle called a graviton to communicate gravity. No one has been able to unite the two leading theories in physics (relativity and quantum mechanics) with any experimental success. In the meantime, we just treat (a) things smaller than atom and (b) everything larger as two different worlds.

  • UraniumBlazer@lemm.ee
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    4 days ago
    1. We have no conclusive evidence to suggest that gravity is propagated by particles. Currently, we think that it very likely might be, but we have not come up with models to quantize gravity. U would win a Nobel prize if u did that.
    2. Watch this
  • gandalf_der_12te@lemmy.blahaj.zone
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    3 days ago

    Thank you, finally somebody asks.

    Also, other important question: What are the differential equations that describe how the Gravity Field propagates through space? In other words, at what speed does gravity propagate?

  • Todd Bonzalez@lemm.ee
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    3 days ago

    If gravity is a particle, and that’s a big “if”, then the inescapable attractive force of a black hole would be the result of that particle’s action, so what exactly would it be escaping? Itself?