1:57:36

Sir Roger Penrose, Aeons before the Big Bang (Copernicus Center Lecture 2010)

1:33:01

Sir Roger Penrose - From Cosmology to Consciousness - Conformal Cyclic Cosmology

1:34:43

Roger Penrose. Twistor theory.

15:03

1/2 The Art of the Impossible: MC Escher and Me - Secret Knowledge

1:11:47

M. C. Escher - Artist, Mathematician, Man - Roger Penrose and Jon Chapman

1:41:04

Prof. Sir Roger Penrose - Hawking Points in Cosmic Microwave Background Radiation, Quantum Spacetime

1:28:32

Productive generalization - Timothy Gowers

1:36:50

Set Theory and the Philosophy of Set Theory