More from Chalkdust
The problem with addition
It doesn’t add up for Patrick Creagh
Chalkdust issue 20 – Coming 8 November
Pre-order your copy of our 9½-year anniversary issue now!
Congruent Triangles
We review the seventh of this year’s nominees for the Book of the Year
Top ten vote issue 15
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Striking the right chord
How big are these random shapes? Submit an answer for a chance to win a prize!
The evolutionary arms race
Applying game theory to evolution