Sixty Symbols

This cool set of short videos from the University of Nottingham provides descriptions of 60 symbols used in physics and astronomy. (Well, almost 60 symbols--they apparently had to stretch a bit, as they included things like Schrödinger's Cat and the human brain.) My favorite constants? Probably the fine-structure constant and the Schwarzchild radius. Feigenbaum's constant is pretty cool, too.



This same group (mostly) also did a cool set of videos on the each of the elements in the periodic table.