The solar system

[youtube http://www.youtube.com/watch?v=0jHsq36_NTU&w=560&h=315]
A pretty interesting model of our solar system. Worth watching and thinking about it. Vortex was a thing that Descartes already thought about
Part 2
[youtube http://www.youtube.com/watch?v=C4V-ooITrws&w=560&h=315]

The full story of maths. Marcus de Sautoy – BBC four

Chapter 1: The language of the universe
[youtube=http://www.youtube.com/watch?v=rDBdT1Dl_QY&w=560&h=315]
Chapter 2: The genius of the east
[youtube=http://www.youtube.com/watch?v=ax4s-4tQga8&w=560&h=315]
Chapter 3: The forntiers of space
[youtube=http://www.youtube.com/watch?v=vYXj515RhiM&w=560&h=315]
Chapter 4: To infinity and beyond
[youtube=http://www.youtube.com/watch?v=7TKGIY54s1E&w=560&h=315]