This post was part of the Chalkdust 2016 Advent Calendar.
More from Chalkdust
- A podcast for the mathematically curious
- Fashion is fleeting, Chalkdust regulars are not.
- We look back at last year's Black Mathematician Month, and give a preview of what to expect this October.
- Behind today's door... a quiz!
- Don't be left behind... more mathematical fashion advice
- Here is a very exciting way to measure how similar is your music playlist between your friends, or how similar are your Facebook contacts.