Mathematics gets down to work in these talks, breathing life and logic into everyday problems. Prepare for math puzzlers both solved and unsolvable, and even some still waiting for solutions.

**Ron Eglash: The fractals at the heart of African designs**

When Ron Eglash first saw an aerial photo of an African village, he couldn’t rest until he knew — were the fractals in the layout of the village a coincidence, or were the forces of mathematics and culture colliding in unexpected ways? Here, he tells of his travels around the continent in search of an answer.

**How big is infinity?**

There are more whole numbers than there are even numbers … right? Actually, there aren’t. This TED-Ed talk makes it crystal clear why not, in a lesson on the infinite infinities and math’s unanswerable questions.

**Arthur Benjamin does “Mathemagic”**

A whole team of calculators is no match for Arthur Benjamin…

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