magpies
26th September 2009 - 05:10 AM
The cause for mass and energy? Why is it that mass and energy is thought of as the cause for gravity?
It seems possible that gravity could infact be what causes energy and mass to exist in the first place? Like say in some region of space gravity starts to exist and in doing so it manifests as energy and/or mass... What ya guys think?
wcelliott
26th September 2009 - 05:27 AM
I have an equally wacky idea that String theory is mostly right, except you replace "strings of energy" with tiny tears in the barrier between 3D+time space (our universe) and the larger higher-dimensional space (5D+time?) in which our universe exists as a Black Hole.
The Black Hole's collapse is what we call the "Big Bang", Gravity is our space "hissing" out the tiny tears, which are, I'm asserting without proof, what Hawking radiation looks like *inside* a Black Hole.
Where I'm stumped is why a tear in space-time would have momentum.
magpies
26th September 2009 - 05:31 AM
Nice ideas there. Probably the same reason any thing can have momentum there is a virtualy unlimited amount of room to move in and a limited amount of stuff to move in it.
O_o
26th September 2009 - 11:51 AM
The key thing there is how you'd defines the entropy of the gravitational field. As I recall, according to Penrose low entropy corresponds to a very smooth uniform gravitational field---before any clumping/coagulation has taken place.
The blank even field is the state of highest order, stars and galaxies and clusters of galaxies curdle and coagulate it represents increasing disorder in the gravitational field.
This may seem paradoxical.
Alaxir Zoa
30th September 2009 - 12:08 AM
I think gravity is related to time.
Gravity, from my point of view, is just the word we put for the warping of space no matter how big or small, the warping of space. Gravity also affects time in black holes leading to the conclusion of mine that the more gravity you have, the slower time goes. It is the same with reaching the speed of light. Same concept, same result. Gravity is not energy or mass my misled friend.