Mathematician Dr. Hannah Fry explores the mystery of math. It underpins so much of our modern world that it's hard to imagine life without its technological advances, but where does math come from? In this episode, Hannah travels down the fastest zip wire in the world to learn more about Newton's ideas on gravity, follows the trail of perhaps one of the greatest mathematicians of the 20th century, Georg Cantor, to Halle, and explores the contributions of James Clerk Maxwell. Invented or discovered, this question just got a lot harder to answer.

Originally released by DCD Rights Limited, 2018. Streaming video file encoded with permission for digital streaming by Infobase on January 24, 2019.

Numbers and Falling Objects (6:55); --Isaac Newton (6:26); -- Industrial Revolution (4:39); -- Michael Faraday (3:59); -- James Clerk Maxwell (4:10); -- New Geometries (5:21); -- Infinity Concept (4:03); -- David Hilbert (3:05); -- Georg Cantor (5:17); -- Cantor's Mental Health (3:35); -- Culham Centre for Fusion Energy (6:45); -- Credits: Expanded Horizons (0:37); .