The speed of light c is set to 1.
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All quantities in General Relativity are a function of the four vector: |
The dynamical variables of the theory are the 10 independent components of the the metric tensor: |
For example, this describes distortion of rubber sheet by bowling ball |
g mn = g nm is SYMMETRIC |
If two Space-Time points are separated by four vector d m |
Square of distance between them is g mn d m d n |