Privacy & Cookies: This site uses cookies. By continuing to use this website, you agree to their use.
To find out more, including how to control cookies, see here: Cookie Policy
To find out more, including how to control cookies, see here: Cookie Policy
More from Chalkdust
Chalkdust dissertation prize 2025
Calling all final-year students! This is your opportunity to get your work published as a Chalkdust article.Chalkdust dissertation prize
Calling all final-year students!The big argument: What’s the best way to end a proof?
QED or $\square$?Short Cuts: Maths
We review the sixth of this year's nominees for Book of the YearDog leads, mirrors and Hermann Minkowski
Donovan Young looks at the shapes made when two cones collideThe Mpemba paradox
Why does warm water freeze faster than cold water?