General Relativity (Help)

[LLT]

any basic equations describing general relativity (the most basic ones...) (need reply in 20 minutes)
and explain how it works...

[chroot]

Einstein's equation:

R_{\mu\nu} - \frac{1}{2} g_{\mu\nu} R = 8 \pi \kappa T_{\mu\nu}

- Warren

[LLT]

thank you...