More from Chalkdust
Beyond Measure
We review the sixth of this year’s nominees for the Book of the Year
On the cover: Regular tilings
Poppy Azmi explores the patterns that are all around us
The scutoid: a geometric building block of life
In 2018, scientists discovered a new shape that is essential to multicellular life
Oπnions: Can a horse have an Erdős number?
Lucy Rycroft-Smith reflects on the use of this well-established measurement
Significant figures: Katherine Johnson
Biography of Katherine Johnson, NASA human computer and research mathematician
Crossnumber winners
Are you a winner?