Here’s another example of a doodle that can be drawn in a single stroke.
More from Chalkdust
Taking the sting out of wicked problems
Isabel Harrison and Quinn Thomazin were busy bees last summer
Top Ten: Mathematical clothes
The definitive chart of the best matrices
Maths on the Back of an Envelope
We review the eighth of this year's nominees for the Book of the Year
Balancing the equation
Reviewing the Royal Institution's first Black History Month event.
Analogue computing: fun with differential equations
Solving differential equations instantaneously, using some electrical components and an oscilloscope
Prize crossnumber, Issue 02
Win £100 in our famous original crossnumber