Take a mathematician with an endless curiosity about the world around him & the capacity of his subject to interpret it, & you have Series 3 of our #WhatsonYourMind films: a Sam Howison Special featuring geometry, flying spiders, tennis, rain, Pascal's mystic hexagram &, of course, Professor Pointyhead.
Editor's note: #WhatsonYourMind is the opportunity for Oxford Mathematicians to let it all out in 58 seconds (2 seconds for credits).
You can also watch the first two series on the Oxford Mathematics YouTube Channel.