How Yo-Yos Work
You may have played with a yo-yo before -- perhaps you've even walked the dog -- but do you know about the physics behind what makes a yo-yo sleep and wake up? Learn all about inertia, angular momentu...
3 Jan 201231min
Coffee: The World's Drug of Choice
There's a 98 percent chance you're drinking coffee right now. Maybe not, sure, but coffee is ubiquitous - about 80 percent of Americans consume coffee and Brazil alone has 3 billion coffee plants. Lea...
29 Dec 201151min
What happens in the brain during an orgasm?
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 ...
27 Dec 201138min
Josh and Chuck's Christmas Extravaganza
Have you ever wondered why the poinsettia is the official plant of Christmas or why we hang stockings by the chimney with care? Join Chuck and Josh for this very special Christmas episode. Who knows, ...
22 Dec 201141min
How Pepper Spray Works
Lt. John Pike of the Davis, Calif., police department brought the wrath of the Internet on himself when he casually doused peaceful protestors with pepper spray. Find out what was in the can in this e...
20 Dec 201134min
How Earthworms Work
Earthworms come in a wide range of sizes: The average U.S. earthworm is 6 to 11 inches long, and the giant worms of Australia and South America can grow to a length of 11 feet. Join Josh and Chuck as ...
15 Dec 201142min
How the Digestive System Works
The digestive system uses mechanical and chemical processes to absorb and transport all the nutrients your body needs to survive -- but how does it work? In this episode, Josh and Chuck take you throu...
8 Dec 201145min
How Daylight Saving Time Works
Benjamin Franklin first came up with daylight saving time in 1748, and people still practice it today. But how does it work? What are the pros and cons? Join Josh and Chuck as they turn back the clock...
6 Dec 201134min
