More from Chalkdust
- Michael Wendl really wants those spammers to stop calling him
- We reveal the solutions to our Christmas puzzles!
- We announce the winner of this coveted prize
- Sit in your favourite chair and do away with those tedious algebraic proofs
- Solving differential equations instantaneously, using some electrical components and an oscilloscope
- Exploring mental arithmetic tricks in T. Martin's 1842 guide, 'Pounds, shillings and pence'