Dr. McCoy and Mr. Spock Confront Kirk in his Quarters
4:54
Dr McCoy
1:04:01
"The World in 2030" by Dr. Michio Kaku
4:57
The Pon Farr
9:48
Great Bones McCoy Lines Part 1
2:32
Star Trek DS9 Section 31 Gowron
16:54
Carl Sagan testifying before Congress in 1985 on climate change
1:18:01
Richard Feynman Lecture -- "Los Alamos From Below"
15:19