Out of all the weirdly specific inventions for your yard, the leaf blower remains the most controversial (by far). In today's long-overdue episode, Ben, Noel and Max cut past the noise to figure out just where these things came from, how they work -- and why critics argue "the devil's hairbrush" isn't just annoying... but also potentially dangerous.

CLASSIC: The Night Witches: How an All-female Soviet Bomb Squad Terrorized Nazi Germany
31:35

Mata Hari: Courtesan Turned WWI Double Agent?
36:53

That Time We Made Backpack Nukes
31:27