Tom Stuart presents—in his inimitable way—a clever alternative to the elementary power rule for performing differentiation on a computer.

As if nuclear weapons weren't scarily powerful enough already, these super fast photos add an extra spooky and ominous edge.

Love you Auntie, and your iPlayer Radio.

The sample in Russian at the beginning of this song means "The American company Transceptor Technologies has started production of the Personal Companion computer".

A game.