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Humans have been fascinated by metal for thousands of years. But it took us a long time to master making things with metal. In this episode we go back in time to learn how Japanese swords were forged, how swings were used to make thin metal wires and why steel cables saved so many lives. Molly and co-host Ava are joined by Dylan Thuras, co-founder of Atlas Obscura for part two of this deep dive on all things metal. Plus, Marc meets some talking boxes and there’s an all new Mystery Sound.

Guest: Dylan Thuras, co-author of The Atlas Obscura Explorer's Guide to Inventing the World.

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How mastering metal saved lives

Brains On! Science podcast for kids

How mastering metal saved lives