4 ms·
The (EXCELLENT) PBS channel Eons has video on this too. https://www.youtube.com/watch?v=-G64DagHuOg https://www.youtube.com/watch?v=-G64DagHuOg
by sillyquiet 8y ago
The (EXCELLENT) PBS channel Eons has video on this too. https://www.youtube.com/watch?v=-G64DagHuOg https://www.youtube.com/watch?v=-G64DagHuOg
- zwkrt 8y agoPBS has many very good YouTube channels. I particularly like Space Time (physics) and Infinite Series (math).