More from Chalkdust
How to write a crossnumber
Matthew Scroggs explains how to get digits all riled up
The Truth Detective
We review the second of this year's nominees for Book of the Year
Should you buy a Valentine’s day present?
For those of you tackling this dilemma, here's your answer...
Binary magic card trick
Behind today's door... A binary magic card trick!
Killing by numbers: the mathematics of warfare
A blast from the past. Modelling battle grounds from ancient Greece.
A counterintuitive result in the theory of traffic flow
Additional roads do not imply faster travel times!