General Relativity 6 Contravariant vs Covariant

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=Fdo00O2f2iI

Contravariant and covariant components of a vector. We continue our discussion of Gravitation and General Relativity; Still on tensors.

contravariant, components, covariant, tensors, general relativity, gravity, الجاذبية
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