Ciro Santilli @cirosantilli 37

A more concrete and easier to understand version of it is the more photon-specific Poincaré sphere, have a look at that one first.

2D representation of $SU(2)$.

For students (who are paying for the university to start with...), they will not claim tutorials linked to courses. But a tutorial that shows university laboratories, it is unclear: www.ox.ac.uk/students/academic/guidance/intellectual-property (archive) This likely includes graduate students, who are also not paid by the university.

For faculty, the university owns everything it seems, to be confirmed.

Generative adversarial network illustrates well AI brittleness. The input looks obvious for a human, but gets completely misclassified by a deep learning agent.

Marek Rosa's play thing.

It is quite mind blowing that this is polyphyletic on mammals and birds, what can't parallel evolution achieve??