annals of cows For every cow there is an equal and opposite bean Annie Rauwerda

bodily functions Why does your pee take the shape that it does? Gareth Branwyn

penrose The astonishing math behind Penrose tilings Andrea James

patterns How to "code like a weaver" Clive Thompson

patterns A train station with walls designed using cellular automata "Rule 30" Clive Thompson

raimbow José Bernabé's organic geometry Andrea James

zone the hell out Pleasing patterns in 'Geek Tree Dee' Jason Weisberger

Q*bert Watch these cool shifting patterns, explained in detail by the creator Andrea James

mandalas Intricate mandalas created by Volt Agapeyev Andrea James

patterns How to draw Islamic geometric patterns Mark Frauenfelder

patterns Patterns in Nature – The most magnificent designs come from math and nature, not human beings Carla Sinclair