Gravitational musing
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09-08-2013, 03:48 PM
Gravitational musing
I was pondering the idea that gravity may well be quantized, not continuous.

Matter is quantized. You can't add infinitesimally small amounts of matter to continuously vary the gravity exerted by a body, you can only add quantized bits of it.

Consider

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09-08-2013, 04:00 PM
RE: Gravitational musing
can we know the exact amount of mass something has? isn't kind of fractal at small levels?

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09-08-2013, 04:07 PM
RE: Gravitational musing
(09-08-2013 04:00 PM)nach_in Wrote:  can we know the exact amount of mass something has? isn't kind of fractal at small levels?

I believe the masses of the particles are all known.

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09-08-2013, 04:13 PM
RE: Gravitational musing
well, in that case, your idea makes a lot of sense. I wouldn't be surprised if it's absolutely wrong though, reality tends to be a bitch Tongue

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09-08-2013, 04:20 PM
RE: Gravitational musing
I'm confused. If gravity is dependent on mass, which has to do with matter obviously, and you can quantify matter, why wouldn't you be able to (theoretically) quantify gravity? (I realize I'm out of my league here, so kick my ass if you need to, I like to learn)

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09-08-2013, 04:21 PM
RE: Gravitational musing
Mass-energy is indeed quantized. So, perforce, is gravitational interaction.

Unfortunately there's not so much one can do with just that observation. On one level it is simply less relevant due to the weakness of gravity - electromagnetic interaction of fundamental charges is many magnitudes stronger than gravitational interaction of individual particles.

On another - well; quantum gravity is an elusive beast.

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09-08-2013, 04:35 PM
RE: Gravitational musing
(09-08-2013 04:20 PM)evenheathen Wrote:  I'm confused. If gravity is dependent on mass, which has to do with matter obviously, and you can quantify matter, why wouldn't you be able to (theoretically) quantify gravity? (I realize I'm out of my league here, so kick my ass if you need to, I like to learn)

Well, that is what I'm saying - that it seems that gravity must be quantized.

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09-08-2013, 04:36 PM
RE: Gravitational musing
(09-08-2013 04:21 PM)cjlr Wrote:  Mass-energy is indeed quantized. So, perforce, is gravitational interaction.

Unfortunately there's not so much one can do with just that observation. On one level it is simply less relevant due to the weakness of gravity - electromagnetic interaction of fundamental charges is many magnitudes stronger than gravitational interaction of individual particles.

On another - well; quantum gravity is an elusive beast.

What I think should be done with the observation is to base the mathematics describing gravity and it's relationships with other forces on discontinuous maths.

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09-08-2013, 05:22 PM
RE: Gravitational musing
Wouldn't you just assume, at some (very small) level it WAS quantized ? Does someone say it isn't ? The Plank Constant, (6.62606957 × 10-34 m2 kg / s), the Plank relation, and quantum wavelengths are all related by quantized relationships.
The Gravitational constant is also a specific *measure*. 6.67384 × 10-11 m3 kg-1 s-2
I think unless there was evidence to the contrary, I would assume it was quantized, just because of the relationships it has to other known quantized phenomena.

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09-08-2013, 05:25 PM
RE: Gravitational musing
(09-08-2013 05:22 PM)Bucky Ball Wrote:  Wouldn't you just assume, at some (very small) level it WAS quantized ? Does someone say it isn't ? The Plank Constant, (6.62606957 × 10-34 m2 kg / s), the Plank relation, and quantum wavelengths are all related by quantized relationships.
The Gravitational constant is also a specific *measure*. 6.67384 × 10-11 m3 kg-1 s-2
I think unless there was evidence to the contrary, I would assume it was quantized, just because of the relationships it has to other known quantized phenomena.

Yup, that's pretty much what I'm saying. I don't know that it's not being treated this way by theoretical physicists, but it is not the common understanding of gravity - that is much more Newtonian or Einsteinian.

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