https://academictorrents.com/details/be19083019ae3954680733d394e5e5b5b3572a15
[Coursera] Understanding Einstein: The Special Theory of Relativity (Stanford University)...
[Coursera] Understanding Einstein: The Special Theory of Relativity (Stanford University) (einstein), Info Hash: be19083019ae3954680733d394e5e5b5b3572a15
special theory of relativitycourseraunderstandingeinsteinstanford