Division algebras and physics (Video 1/14). First video ~ general audience

Note 1: More precisely, four algebras generalize the real numbers *in a particular way*. To see what we mean by *in a particular way*, please see Section 1.1 of https://arxiv.org/pdf/math/0105155.pdf Note 2: no dividing by zero, of course. Video 1 of 14 - first video is meant for a general audience Series: Division algebras and the standard model Some short videos filmed by Vincent Lavigne Seminar by C. Furey, Walter Grant Scott Research Fellow in Physics Trinity Hall, University of Cambridge http://damtp.cam.ac.uk/people/nf252/ https://arxiv.org/pdf/1611.09182.pdf https://arxiv.org/abs/1603.04078 https://arxiv.org/abs/1405.4601 https://www.furey.space