In 1968, Paul Erlich published The Population Bomb, predicting coming famine and mass death. Erlich's predictions didn't pan out but his ideas launched a debate still raging today. Learn all about it in this classic episode.

Short Stuff: Flappers
11:23

Nickelodeon:The Best of Slimes
50:23

Selects: Blacksmiths? You got that right!
50:19