Youtube Description: This 50 minutes long BBC documentary film is aired in the year 2011. The BBC film says it is the first and the most technological advance in the world, ancient chariot racing, the... continue reading
posted by oohlalasassoon 1 decade 1 year 4 weeks ago • 556 views • 48:32Videos (42) | Sift Talk (0) | Blogs (0) | Comments (1000) |
From YT: Axial precession is the reason the Earth's axis has a long-term but quite dramatic "wobble", as explained here by Roger Bowley and Mike Merrifield.
posted by Skeeve 1 decade 2 years 8 months 3 weeks ago • 1,686 views • 7:57