APOLOGIES, Schwarzschild was hotter than I knew. His solution of Einstein’s field eqs came in 1916 !!! He musta been ready… to crank tensors and Christoffel symbols.

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APOLOGIES, Schwarzschild was hotter than I knew. His solution of Einstein’s field eqs came in 1916 !!! He musta been ready… to crank tensors and Christoffel symbols.

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Appropriate for Mr. “Black Shield”

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With help from his assistant, Einstein had been developing TENSOR ALGEBRA. His summation convention means we sum when a contravariant index is the same as a covariant one. Steve will indeed recognize E_a E^a………………

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