More from Chalkdust
Prize crossnumber, Issue 18
Can you solve it?
Why Study Mathematics?
We review the fifth of this year's nominees for the Book of the Year
Launch day puzzle hunt
Celebrate the launch of issue 11 by taking part in our puzzle hunt
The scutoid: a geometric building block of life
In 2018, scientists discovered a new shape that is essential to multicellular life
On the cover: Hydrogen orbitals
Find out more about the weird shapes on the cover of Issue 08
Why is it so hard to pull two phone books apart?
Take two phone books and interleave all their pages one by one. Now try and pull them apart by their spines. Impossible, right?