Exercise for the reader
More from Chalkdust

A symmetric universe
Sam Kay reflects on building a universe
How much hair?
Thomas Sperling discusses some furry Fermi problems
Our favourite (and not-so-favourite) Euler equations
A collection of our favourite and least favourite things named after Euler, from issue 07
Magic behind the Fibonacci sequence
Let's take a look at patterns that can be discovered in Fibonacci numbers and how we can find them around us.
Spherical Dendrite by Mark J Stock
The story behind Issue 3's cover artwork
Klaus Roth
(1925 - 2015)
