Every year the flu virus makes the rounds, laying up young and old alike for days before moving on to another hapless victim. But flu viruses can mutate and once in awhile they turn into something much deadlier, a pandemic that can kill millions. Learn all about it with Josh and Chuck in this classic episode.

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The good news is that we know antidepressants can treat major depression, helping millions of people live healthier lives. The bad news is that we don’t really know how they do that. Check out the theories on how antidepressants work in this episode.

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Pete Rose said she was “bigger than any one player” in baseball during the 70s and 80s. Morganna the Kissing Bandit became a legend in sports for running onto baseball fields and kissing players during games.

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Scrabble is a game that neither of us plays with regularity. And maybe that's good for this episode. We're all learning, right?

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It is literally all around you (and even inside you) - electricity makes up the basis of modern life. But what exactly is electricity and how does it work? In this classic episode, Josh and Chuck chase away the darkness and explain electricity in their usual electrifying way.

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The market for Chinese art used to be very small and is now a billion dollar annual industry. What changed? And how is this all tied to a string of heists? Listen in to find out.

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A request by our producer Dave C, we explore how totally on your own you were in Medieval England when the court declared you an outlaw.

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The telephone switchboard was a real wonder of technology and laid the groundwork for the next generation of connectivity. Learn how these things worked today.

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