Sir Roger Penrose - The palatial twistor approach to Einstein lambda vacuums

42:57
George A. J. Sparling - The interplay of symplectic and projective geometry in the context of ...

1:35:26
Basic Twistor Theory, Bi-twistors, and Split-octonions - Roger Penrose

43:36
R. Penrose: Space-Time Quantum Non-Locality: Does Palatial Twistor Theory Suggest an ... (EmQM17)

1:57:36
Sir Roger Penrose, Aeons before the Big Bang (Copernicus Center Lecture 2010)

3:12:00
Electromagnetism as a Gauge Theory

24:15
Life of James Clerk Maxwell.

1:09:42
The Mystery of Spinors

1:33:00