Filmmaker Albert Nerenberg's Dangerous Idea? Laugh more.
You can also watch his laughter hack video.
Intelligent. Optimistic. Curious.
Audio
Bruce Watson tells Steve Paulson why Erector Sets were so huge. They reflected the spirit of America’s Industrial Age, and A.C. Gilbert marketed them directly to boys.
Bennett Alan Weinberg talks with Anne Strainchamps about how little we actually know about the vegetable alkaloid we know as caffeine.
We re-examine the myth of Robert Johnson. The most famous blues singer of them all died at the age of 27 after recording only 29 songs. Today he's idolized, but Elijah Wald says that may be for the wrong reasons.
Coral reefs and many of the oceans' marvels may disappear before this century ends, according to a new scientific study. Science writer Elizabeth Kolbert says we're facing the sixth great extinction. She tells stories from the front lines of the fight against extinction, from Panama to Australia's Great Barrier Reef.
Why do we sleep? No-one really knows, but neuro-scientist Bob Stickgold tells Jim Fleming about his ideas concerning sleep and why it’s important.
Ernie Cline talks to Anne Strainchamps about his novel, "Ready Player One," which revolves around a massively multi-player online game and '80s pop culture.
Hip hop artist DJ Spooky brought a crew to Antarctica and created Sinfonia Antarctica. He tells us how his audio portrait documents the effects of climate change on the continent.
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