The next time you're in Vegas, rent a car and spend a day at the Hoover Dam. This towering, larger-than-life marvel of human engineering has fundamentally shaped the United States. But building it was far from easy. In the first part of this two-part series, Ben, Noel and Max recount the guys' adventure exploring the Dam in person... and the sheer, ridiculous audacity of the thing.

Knitting as Espionage, Part One: Secrets in the Stitch
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CLASSIC: Idiomatic for the People II, Part II
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Inventors Who Died Due To Their Own Inventions: The Irrational Death of Hippasus
34:48