img16 - Chalkdust

Period 3 orbits break up into two distinct groups with different shapes

Clare (like gare) is a Chalkdust editor. In her spare time, she’s an assistant professor at Durham University. She likes Skittles, probability, and making the magazine look more like Cosmo.

Poly-π
Clem Padin calculates π, but not as we know it
Chalkdust dissertation prize
Calling all final-year students!
The big argument: What’s the best way to end a proof?
QED or $\square$?
Chalkdust issue 11 puzzle hunt #3
David Sheard sets the third puzzle. Can you solve it?
Can you make something out of nothing?
We explore the concept of emptiness in set theory, and explain how zero went from "nothing" to "something"
Binary magic card trick
Behind today's door... A binary magic card trick!