Brian Greene

Brian Greene

https://www.youtube.com/watch?v=OZUAtUNs8Gk#t=14m0s

Einstein's Journey
https://www.youtube.com/watch?v=Q1y3YnPgaY4#t=9m20s
https://www.youtube.com/watch?v=7J_150pL8Dc

Electricity
https://www.youtube.com/watch?v=Gtp51eZkwoI

The Hidden History of Humanity
https://www.youtube.com/watch?v=GbWMw249xY8#t=16m0s