More from Chalkdust
Solving a cubic in 1646
Elinor Flavell takes squaring the circle to another level
NEW! Pop-math book club
Do you have lots of unread pop math books on your shelves? Join our new monthly online book club!
How to make: Ecki the polytope
Make your own Ecki
Carnival of Mathematics 133
This month's round up of mathematical blog posts.
Somewhere over the rainbow
Some mathematical questions you might have wondered every time you look at one of those rainbows
The Symposium of the Muses
The resultant art is the outcome and purpose that elevates and distinguishes the science.