In this episode, amateur anthropologists Josh and Chuck discuss urban legends, from how they're defined to some classic examples you've probably heard yourself.

This film was directed by art film director Chuck Workman, well known for directing the annual Academy Award retrospective segments. Also features the screen debut of Danny DeVito.

Ever since the wheel was invented more than 5,000 years ago, people have been inventing new ways to travel faster from one point to another. Join Josh and Chuck from Stuff You Should Know as they investigate teleportation.

Few numbers have as storied a past as zero. Even fewer have had as great an impact on our ability to understand our universe. Yet zero is a relatively recent arrival in math. Find out all about this surprisingly fascinating number with Chuck and Josh.

Biospeleology is the scientific study of cave organisms and ecosystems. In this episode, amateur biospeleologists Josh and Chuck explore the dark, dank world of caves and the weird and wonderful creatures that live in them.

Is there a negative correlation between happiness and intelligence? Is ignorance truly bliss? Josh and Chuck attempt to answer this age-old question by exploring the "science" of happiness in this podcast from HowStuffWorks.com.

Chuck and Josh test the limits of their decorum as they explore the physiology of an orgasm. Learn all about this inexplicably taboo subject (including how even women who are paralyzed can experience orgasms) in this episode of Stuff You Should Know.

Chuck and Josh discuss five of the most bizarre government experiments, from transplanted puppy heads to Cold War psychics, in this episode.

Josh and Chuck share the story of their recent eye-opening trip to Guatemala, which was sponsored by a nonprofit organization called Cooperative for Education, in this very special episode of Stuff You Should Know.

Josh and Chuck discuss the Braille alphabet -- from its origins in Charles Barbier's "night writing" system to the many Braille codes that exist today -- in this episode of Stuff You Should Know.