Image: Chalkdust.
More from Chalkdust
Notched edge cards
Joe Celko makes a database from card and knitting needles
Dear Dirichlet, Issue 15
Weddings, holidays and catfish find their way into the prof's postbox this issue.
Chalkdust issue 14 – Coming 22 November
Enter stage left: Chalkdust issue 14. Preorder now!
Closing the Gap
A review of Vicky Neale's new book about the quest to understand prime numbers.
Creating hot ice
We created hot ice from scratch, a solution that remains liquid even below its freezing point!
Reinventing 2D
What a difference a matrix makes