More from Chalkdust
Issue 21
Sudoku, potatoes and crossnumber's biggest secrets finally revealed in our spring 2025 issue. Plus all your favourite columns!
Prize crossnumber, Issue 19
Can you solve it?
What’s odd about Pascal’s triangle?
Graeme Foster asks if there are more odd or even numbers in the triangle
Dog leads, mirrors and Hermann Minkowski
Donovan Young looks at the shapes made when two cones collide
The power of curly brackets
Mats Vermeeren sketches a simple proof of Noether's first theorem
Constructing a sphere with 455 cups
Paper cups do not follow a hexagonal pattern and the cones do not meet at a single point, but they do make a gigantic sphere