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equation for GR

dstebbins
in Relativity

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As I copy the equation from the Wikipedia article for GR, I get G_uv = [(8*pi*G)/c^4]T_uv. Underscores siginify subscripts, and u is the greek letter Myu. Hey, I don't know how to put it in HTML! Sue me!

 

I can infer what some of these variables mean. Pi is Archamedes' constant, G is the Gravitational constant, and c^4 is the speed of light to the fourth power.

 

What do the other variables mean?

There are actually lots of equations in GR, not just one. In this particular equation, "G_uv" is the Einstein tensor, and "T_uv" is the stress energy tensor. The stuff in between is a constant k. What this equation does is explain how spacetime curves.

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