Seeing double Take a ball, divide it into parts, glue them back and get two identical copies of your ball!
Tupper’s self-referential formula A hideous equation that hides beautiful images, and much (much) more besides...
Four ways Photoshop encourages thinking mathematically How processes used in image editing are related to mathematics!
Creating hot ice We created hot ice from scratch, a solution that remains liquid even below its freezing point!
Prize crossnumber, Issue 05 Win £100 of Maths Gear goodies by solving our famously fiendish crossnumber
Dear Dirichlet, Issue 05 Prof. Dirichlet tackles political arguments and werewolves in answering your personal problems
Which mathematical object are you? Are you feeling ideal? In your prime? Discover your inner mathematical object (plus handy term explainer).
You can find previous issues of Chalkdust