More from Chalkdust
I’m counting on it
Joe Celko looks at four different abacuses used throughout history
On the cover: Some assembly required
Trippy brain massages from Sam Palmer's artwork on the front of Issue 16
Humble Pi
We review the sixth of this year's nominees for the Book of the Year
Prize crossnumber, Issue 05
Win £100 of Maths Gear goodies by solving our famously fiendish crossnumber
What should you get a mathematician for Christmas?
Behind today's door... The Chalkdust guide to Christmas presents
The Buckingham π theorem and the atomic bomb
Diego Carranza tells you to stop worrying and dimensionally analyse the bomb