More from Chalkdust
Skimming potatoes
Ryan Palmer shares his chips – sorry – tips for finding the perfect skimming stone
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!
The Mpemba paradox
Why does warm water freeze faster than cold water?