Stuff You Should Know

Years back, Josh recorded this show without Chuck, and the old version's omitted facts bugged him. In this new version, the pair delve into the people, science and rocket tests behind Murphy’s Law. Join Josh and Chuck for this properly-executed episode.

The response to humor starts with electrical activity, potentially translating to physical responses that make up laughter. Science still can't pin down what makes one thing amusing and another not (which is pretty funny). Tune in to learn more.

The response to humor starts with electrical activity, potentially translating to physical responses that make up laughter. Science still can’t pin down what makes one thing amusing and another not (which is pretty funny). Tune in to learn more.

It's tough to predict the future. Instead, the future looks a lot like it does now: Faster data transfer rates, more social networking, ubiquitous mobile devices -- and possibly dumber people from using all this stuff.

It's tough to predict the future. Instead, the future looks a lot like it does now: Faster data transfer rates, more social networking, ubiquitous mobile devices -- and possibly dumber people from using all this stuff.

In 1820, most of the drugs listed in the American Pharmacopoeia were plant-based; by 1960, it was a mere 5 percent. Yet in the late 20th century this trend reversed. Why? Join Josh and Chuck as they get to the root of ethnobotany and plant-based medicine.

In 1820, most of the drugs listed in the American Pharmacopoeia were plant-based; by 1960, it was a mere 5 percent. Yet in the late 20th century this trend reversed. Why? Join Josh and Chuck as they get to the root of ethnobotany and plant-based medicine.

A condition known as chromhidrosis can be jarring: The sufferer excretes colored sweat from the eccrine or the apocrine sweat glands. Join Josh and Chuck as they explore this somewhat understood, but still bafflingly mysterious medical condition.

A condition known as chromhidrosis can be jarring: The sufferer excretes colored sweat from the eccrine or the apocrine sweat glands. Join Josh and Chuck as they explore this somewhat understood, but still bafflingly mysterious medical condition.

SPAM is a canned meat product made from pork shoulder and ham. First introduced in 1937, this iconic food has spread to stores across the world. But what exactly is it, how did it get here -- and why is its shelf life "indefinite?" Tune in to find out.