Consider the complex plane extended with the point at infinity. … More Groups Unfolding
Here is a puzzle of Carrollian style from 1936. It was proposed by Sir Arthur Eddington and published in the New Statesman and Nation magazine. … More Looking Glass Zoo
Wigner (in his 1951 paper) proposed “a new kind of statistical physics” based on random matrices to model certain properties of excited states of heavy nuclei. … More Unexpected Appearances of Random Matrices
“The principle of least action stands superior to both (conservation of energy and conservation of momentum), even when considered together, and it appears to govern all the reversible processes of Nature” – Max Planck … More What’s the Shape of a Hanging Chain?
The classification of semisimple complex Lie algebras is regarded by many as a jewel of mathematics with such great contributors as Killing, Cartan, and Dynkin. … More E8: An Exceptionally Beautiful Piece of Mathematics
In 2001 Richard Borcherds gave a 15 week course on Quantum Field Theory… … More Life Cycle of a Theoretical Physicist