More from Chalkdust
When Truchet met ChladniStephen Muirhead meets neither, as he explores waves, tiles and percolation theory
Christmas conundrum #2Solve this and you could be the lucky winner of a signed copy of The Indisputable Existence of Santa Claus
Creating hot iceWe created hot ice from scratch, a solution that remains liquid even below its freezing point!
Curiouser and curiouser!Some surprising mathematical facts
Find your perfect partnerFind your perfect partner with this wonderful tree diagram!
FractogramsHugh Duncan explores the hidden patterns of fractions