This post was part of the Chalkdust 2016 Advent Calendar.
You might also like…
- A review of Vicky Neale's new book about the quest to understand prime numbers.
- Behind today's door... a quiz!
- The search for polydivisible numbers in different bases: how many can you find?
- Additional roads do not imply faster travel times!
- Some mathematical questions you might have wondered every time you look at one of those rainbows
- We tell you what's popular in the world of maths, so you can get ahead of the curve!