Cuckoo: Wellcome Trust, CC BY 4.0
More from Chalkdust
Crossnumber winners, issue 12
Did you solve it?Prize crossnumber, Issue 11
£100 of MathsGear goodies to be won if you can solve it
Top Ten: pictures of scorpions
The definitive chart of the best pictures of scorpions
The maths behind a chip goal
We analyse the maths and physics required to execute a good chip shot
Machine learning 101
Start your quest to conquer the planet with this introduction to the wonderful world of machine learning
Victorian maths tricks with old money
Exploring mental arithmetic tricks in T. Martin's 1842 guide, 'Pounds, shillings and pence'