50 Things That Made The Modern Economy is a podcast that explores the fascinating histories of a number of powerful inventions and their far-reaching consequences. This week, 99% Invisible is featuring three episodes that explain how the s-bend pipe revolutionized indoor plumbing, how high-tech ‘death ray’ led to the invention of radar, and the impact of bricks.

50 Things That Made the Modern Economy is produced by BBC World Service and hosted by Tim Harford.