More from Chalkdust
- Florian Bouyer explains the beautiful geometry behind his mathematical colouring-in designs.
- The definitive chart of the best dates
- Undoubtedly the most influential voice on this hottest of hot topics.
- Can you solve four puzzles to reveal the hidden message?
- How many did you spot?
- Here is a very exciting way to measure how similar is your music playlist between your friends, or how similar are your Facebook contacts.