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On the cover: Spirographs
Ashleigh Wilcox, Jenny Power and Rachel Evans show you how to draw pretty pictures
Page 3 model: Ponytails
Many mysteries about hair are now revealed with the ponytail shape equation
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!