tetrads Published 4 years ago • 4.8K plays • Length 15:12 Download video MP4 Download video MP3 Similar videos 26:57 null vectors and null tetrads 19:22 the meaning of the metric tensor 11:41 visualization of tensors - part 1 11:15 introduction to tensors 20:25 introduction to 2-forms 17:57 introduction to the lie derivative - 1 12:07 introduction to 1-forms 15:42 gradient is a 1-form