When are humans most happy? To gather data on this question, Matt Killingsworth built an app, Track Your Happiness, that let people report their feelings in real time. Among the surprising results: We're often happiest when we're lost in the moment. And the flip side: The more our mind wanders, the less happy we can be. (Filmed at TEDxCambridge.)
Thousands of people across the globe believe the world will end in 2012 -- but why? Tune in and learn more about the beliefs of 2012ers, from interpretations of the ancient Mayan calendar to concerns over irregular sunspot cycles and solar storms.
Apparently this is the Japanese perception of self-defense and what you should do if ever you get robbed by two western men wearing underwear on their heads.
Oh, and you can also bring your English levels to stunning new heights through their effective teaching methods.