More from Chalkdust
Heads and Tails
An unexpected way to beat the odds in this classic game
Why maps are wrong
If only the Earth were flat...
Analogue computing: fun with differential equations
Solving differential equations instantaneously, using some electrical components and an oscilloscope
Fun with water bells
Explaining how surface tension makes water form surprising shapes
Page 3 model: The Duckworth–Lewis method
Meet the Duckworth-Lewis method, 23, from Lancashire
£100 Prize Crossnumber, Issue 02
Win £100 in our famous original crossnumber