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Wouldn’t it be nice if there WAS such a thing as a graviton?

01BlackSnake

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POSTS: 3

Report this Jul. 12 2002, 9:15 pm

A particle that transmits the force of gravity. I am sure that would make things very interesting in technology. :)

CarlSagan

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POSTS: 66

Report this Jul. 13 2002, 4:17 pm

um... a graviton is a quantum measurement of a gravitational fieldit exists. They are similar in concept to the photon. THey are both the quantized field of a fundamental force. a photon is to the EM force as a graviton is to gravitational force. Both have infinite range, thus containing massless particles that travel at the speed of light in a vacuum.

However, since these particles are governed by quantum field theory they have no action at a distance. If you think gravity is a quantum field then you can know that these gravitons exist. However every experiment that has attempted to detect these has failed since the fundamental gravitational force is so much weaker than the EM force, which intuitively mean that there are much fewer gravitons to detect.

there are some who believe that action at a distance exists as a collapsing wave-functions, which is not describable by a field theory. but since the action is instantaneous, it is indetectable.

but again, if you’re looking for a particle that emits gravity, try any particle with a mass. mass bends space-time creating a well and something called time. space and time and gravity certainly do make for some interesting technologies. ;)

-JR (CS)

Apollo

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POSTS: 157

Report this Jul. 14 2002, 1:57 am

Yes and everyone was just as sure about the existence of "ether" even though it couldn’t be detected, because the mathematics of the physics theories that existed a hundred years ago worked so well with it. Anything that cannot be detected cannot truly be argued to exist it can only be a supposition. As a graviton has been defined by Carl Sagan (above) that is, simply a quantum unit of measurement of the gravitational force, he assumes that gravity is, in fact a force. We can certainly measure its effects but gravity may well turn out to be nothing more than a side effect of warped space itself. I could create quantum units to measure centrifugal force (which is actually only an effect that is misnamed as a force) and I could make arguments about the existence of quantum particles of centrifigal force based upon my units of measurement but what I am REALLY measuring is simply the interplay between laws of motion that could be readily measured (if I could open my mind to the idea) using any of the measurement units normally used for force or motion.

Is gravity a force or an effect? Can it be measured in its own unique quantum measurements or should it really be measured in some other way (such as a simple measurement of force or perhaps as a measurement of 4th dimensional space/time curvature)? Do gravitons exist, even as a definition of a measurement? I don’t know but, with the way Science has of throwing out old ideas with new paradigm shifts, I am going to wait until someone actually finds a way to detect a graviton, or a gravitic wave before I decide.

mindmeldstudent

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POSTS: 198

Report this Jul. 15 2002, 1:32 pm

I postulate that the graviton does not exist, because gravity is a stretching of the fabric of the space-time continuum. If a descriptive were to be applied, perhaps not particles or such but folds? By that definition, a graviton wouyld be a ’groove’ or ’niche’ or ’fold’ that follows the contour of the bent space-time fabric as it approaches the object having gravitational pull.

What do you think?

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