Students with outstanding performance and others who cannot afford their own sewing machines are awarded donated sewing machines at successful completion of the course.

And the only way that mathematicians know how to model this structure is with crochet. It happens to be a fact.

These were often donations of cows, chickens, agricultural machines and tools, sewing and knitting machines, as well as courses from different areas.

Margaret Wertheim leads a project to re create the creatures of the coral reefs using a crochet technique invented by a mathematician celebrating the amazements of the reef, and deep diving into the hyperbolic geometry underlying coral creation.

He uses scale to more and more spectacular effect, whether on the roof of a temple in Singapore, or in his increasingly ambitious installation work, here with 192 functioning sewing machines, fabricating the flags of every member of the United Nations.