More from Chalkdust

Notched edge cards
Joe Celko makes a database from card and knitting needles
Poly-π
Clem Padin calculates π, but not as we know it
Math Games with Bad Drawings
We review the fourth of this year’s nominees for the Book of the Year
Top ten vote issue 13
Have your say
The scutoid: a geometric building block of life
In 2018, scientists discovered a new shape that is essential to multicellular life
The mathematics of human migration
Human migration with mathematical models, data and a hands-on experiment!
