Joe Celko looks at four different abacuses used throughout history
In 2018, scientists discovered a new shape that is essential to multicellular life
What is pi? How do we define it and who first thought of it? We explore the history of this quintessential mathematical constant.
Chalkdust descends upon the UK's largest pop maths gathering and tells you what you missed
Factorisation is often used in cryptography. But there's something even simpler which turns out to be just as hard.
Solve the puzzles that appeared in Issue 05.
