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Gravity in higher dimensions 
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#1
Sep209, 05:06 AM

P: 11

according to string theory, gravity got the ability to escape the Dbrane of witch all matter is bound. The reason is that the boson carrying the gravity is a loopstring, with no open ends linking to the brane.. this theory should explain why the gravity is so much weaker than the other forces.
but, the way gravity is decreasing by distance is spherical(3Dimensional), by newtons law of gravity: [tex]F = \frac{G \cdot m_{1} \cdot m_{2}}{r^{2}}[/tex] witch indicates that there is no gravity lost to higher dimensions my question now is: why does scientists state that gravity can escape our brane? 


#2
Sep209, 06:59 AM

P: 2,828




#3
Sep209, 01:22 PM

P: 343




#4
Sep309, 05:49 AM

P: 11

Gravity in higher dimensions
like if you are projection light though a glass sphere on a paper, where the geometrical form will be a filled circle, but with a darker fill in the center? as [tex]1/r^{2}[/tex] 


#5
Sep309, 05:54 AM

P: 11




#6
Sep309, 03:56 PM

P: 5,632

My reading supports Finbar's post # 4 answer....
Humanos posts includes: "Because the projection of a hypersphere on a threedimensional "brane" still remains a sphere, the modification of the above formula for gravity is not in the exponent 2.." Doesn't the leakage depend on the other dimensions... NOT the brane(s)....??, Experiments to date (so far, that is) with Casimir apparatus confirms inverse square law...but the story ending has not yet been written. Humano's post includes: 


#7
Sep409, 08:32 AM

P: 2,828




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