Using a series of videos, "The Humor Code" authors tested the "world's funniest joke" to see if it's possible to make it funnier. Science explains -- sort of -- what worked. And what didn't.
Dr. Peter McGraw, the co-author of "The Humor Code," speaking at TEDx Boulder.
Slideshow: A standing-room-only crowd showed up at the Tattered Cover for last Friday's conversation with "The Humor Code" authors and Colorado Matters host Ryan Warner.
Boulder author Gail Storey chronicles losing more than 20 pounds on the hike, tearing a shoulder muscle and suffering from exhaustion and malnutrition.