Strip of LEDs in a slow shutter
More from Chalkdust
Issue 20
Spirographs, complex triangles and a lot of ants feature in our AW24 issue! Plus all your favourite puzzles & columns.
Notched edge cards
Joe Celko makes a database from card and knitting needles
Do the shuffle: finding π in your playlists
Henry Jaspars really likes Nick and Norah’s infinite playlist.
The hidden harmonies of Hamming distance
Chris Boucher explores the secrets and symmetries behind a measure of the distance between binary strings
An uncomfortable truth
Lucy Rycroft-Smith and Darren Macey unpick the legacy of some of the most ubiquitous names in statistics
Superegg
How optimising the space around a circular monument is related to supereggs