Pushing gravity mechanics

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Jim,

I don't have specfic information regarding heat affects on gravity however, heat was predicted as a by product in UniKEF and such heat flow from the earths core correlating to gravity potential has been found.

Also since heat induces increased motion of particles it follows that it should have an impact on gravity "orthogonal" to the particles motion. See UniKEF/Messages/Graphics/Fig_6.

It come to mind that this affect might permit a calculation regarding "Speed of Gravity". If temperature could be correlated to a change in gravittional force, then the speed of particles at various temperature temperatures may be able to be correlated trigometrically to the velocity of the field.


123...,

I don't think we have any disagreements here. The issue was the fact that the equal rate is preached so definitely as a LAW and disregards the fact that it only appears uniform for a limited range and that it actually varies is the point. In otherwords it is felt that we should be teaching the facts and qualifying the generic use of equal acceleration.

There are many things in physics that are more minute than this that we make to be very important and base whole concepts on. For example the difference in Newton Gravity and Relavistic gravity. YOu have to start to be picky to point out a difference but they turn around and just glaze over the fact that objects don't have common rates but say instead that they do when they don't, just because the difference is generally negligable.


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I think some physics teachers neglect the other half of the equation to emphasize the inverse square law and partly as an attention getter for their lectures. It is a sad state of affairs that it has become a popular myth :

www.endex.com/gf/buildings/ltpisa/ltpnews/1999/ltpabc083099.htm

So Erik's webpage is a good wake up call I guess- don't take "facts" for granted. I think his arguments could be better presented though.

I am glad some people talk about gravity here. It is now known in Philosophy of Science Newton's gravity is a circular argument. The problem is Newton wrote about it in the first publication of Principia and his funding was threatened and the first publication was cancelled. One copy was received by Leibnitz and he made clear that Newton did not believe his law of gravity was a good law from rigorous mathematical analysis. The second publication removed all reference to circular arguments Newton admitted. I list below one of Newton statements in origial version of Principia:

"And not only to unfold the mechanism of the world, but chiefly to resolve such questions as What is there in places empty of matter? and Whence is it that the sun and planets gravitate toward one another without dense matter between them? Whence is it that Nature doth nothing in vain? and Whence arises all that order and beauty which we see in the world? To what end are comets? and Whence is it that planets move all one and the same way in orbs concentrick, while comets move all manner of ways in orbs very excentrick? and What hinders the fixed stars from falling upon one another?"

It is indication Newton understood his laws do not explain reality. He wrote this after he noted his laws. He was put to collect all Principia with the above statements and cut out the above statement. Many do not know this, you can not find in books but we have original copy of Principia here and there are many interesting thing in the book like that.

I studied engineer before. I am now candidate for Doctorate in Philosophy. I find gravity is more philosophy than engineering or physics.

Enrico

Gravity may be effected by heat because motion is greater at higher temperatures. Can the motion of a particle in a gravity field have some effect not revealed by current understandings of how gravity works? Since the force of gravity would accelerate a particle only to a finite speed what happens to f=ma when the speed limit is reached and acceleration remains? What is the temperature of the particle at that speed?

Jim, here goes...

As a particle is heated, the kinetic model stipulates that the constituent particles move apart as the heat energy increases. In gases, volume increases if allowed, in other phases, the particles still have a looser association. If the space between particles increases, but piece of matter still remains together (like a melting metal, or hot water) then the material may be more transparent to gravitons than a cooler material since MI's are farther apart and likely to not shield one another. This effect would not be linear and approaches in both directions (hot and cold) would be asymptotes. I am curious about combining TVF's graviton cycle into the thermo laws and cassimir energy. This whole thread really asks for this connection I think... - MV