Stuff You Should Know

Since scientists realized there is a type of cell that can grow into any other type, they have worked to use them to heal human conditions like Parkinson's and immune disorders. But because stem cells often come from embryos they remain controversial. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Ever wonder why some great shows go off the air after a season or less? Blame it on the Nielsen company, which has for more than 60 years been the almost exclusive decider of what goes and what stays on TV. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Pinball was actually illegal until the 1970s in NY and other cities, hidden in the backs of pornography shops. The game was finally legalized, thanks to a Babe Ruth-style shot by the best player in the world. Learn all about it with Josh and Chuck. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

After newsreels captured the Hindenburg erupting in fire in 1937, the promising development of airship aviation was cut short. Today companies and militaries are taking another look at blimps and the unique qualities that may revive them. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Headstones have quite an interesting history. From the beginnings of marking graves with simple wood carvings to the elaborate tombstones that would come in the Victorian era, Chuck and Josh break down the deal with all things headstone in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

It's hard to believe now, but just over 25 years ago there was a giant concrete wall separating East and West Germany. In this episode, Chuck and Josh get into the fascinating story of the Berlin Wall. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Elevators are way more interesting than you might think. In this week's episode, Chuck and Josh board the lift to enlighten everyone as to the ins and outs, and ups and downs, of these handy people movers. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

A disease that was discovered and contained to Central Africa in the 1970s has revived and spread in 2014. Now there is an Ebola outbreak that has moved across borders and science still has no cure for it. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Chuck and Josh dive into the secret world of the National Security Agency, from the origins of the snooping outfit, to the recent revelations from whistleblower Edward Snowden. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

If you think secretly coded messages sent via short wave radio is Cold War relic, think again. Chuck and Josh are here to dispel that myth, along with many others relating to numbers stations, including why they might still be operational. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Do you love Play-Doh? Chuck and Josh certainly love to talk about it, from its interesting history as a wall cleaner, to its more scientific chemical properties. It's everything you ever wanted to know about the pliable children's toy. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

There is a condition that can cause people to feel bugs crawling beneath their skin so acutely that they will use tweezers to pluck them from their eyeballs. It's a terrible disorder made worse by medicine's insistence it is all in sufferers' heads. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Josh and Chuck explore the old notion that there's a dark side of the moon. There is, but it turns out it's not always the same side. And yes, there's a side we never see, but it's not always dark. Make sense? It will in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

You can find probiotics - bacteria thought to have healthful benefits for humans - in everything from pills to yogurt. But does any of it work? Listen as Josh and Chuck get to the bottom of the science (and need for it) of probiotics and health. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

The concept of trickle-down economics is tied to Ronald Reagan, but the idea's been around and in use since the 20s. It's simple: Give more money to the wealthy and they can use it to rev up an economy. But is the whole thing just a scam? Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

In the U.S. alone, more than 6 million people are affected by infertility and science has taken up the mantle of helping them to conceive. Learn about the clever, though intuitive, methods of assisting infertile couples to have a child. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Sushi grew out of a way to ferment fish a couple thousand years ago and in the late 20th century began to take the world by storm. What began as traditional, rigid food has come to evolve with new delicious innovations being added to the original canon. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

There's nothing more boring than watching grass grow, which is why Josh and Chuck aren't asking you to do that. Instead, you can learn about all sorts of neat things about grass - like how America became obsessed with perfect lawns - in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

The idea that the larger the brain, the higher the intelligence is an old one, but it's pretty much utterly false. Modern investigation into how the brain works suggests there's a lot more to take into account when comparing brain biology to intellect. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Since more than 1 billion people have played it, you're probably familiar with the board game Monopoly, but we bet you don't know its secret origins as a left-wing socialist teaching tool. Learn about the history, rules and cultural impact of Monopoly. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

The most famous museum in the world, France's Louvre, has been the seat of high art and culture for several centuries. Its history goes back farther than that, beginning in the 1200s as a fort and prison. Tour the Louvre and its collections in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

You may be surprised to learn those ubiquitous ratings, from G to NC-17, put on movies in America are actually handed down by anonymous employees of a secretive organization that serves as a lobbying firm for Hollywood's six biggest studios. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

It's surprising that a few 12-feet-deep pools of asphalt have proven to be one of the most significant troves of Pleistocene fossils, but the La Brea Tar Pits, located in the heart of Los Angeles, are giving science a clear picture of a puzzling time. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Maybe you hail from a soccer crazed country - or from the U.S. Either way, there's lots to discuss about "the beautiful game", from its prehistory, rules and strategy to, of course, the World Cup. Join Josh and Chuck as they wade into football, aka soccer. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Your employer may be secretly reading your emails, watching what websites you visit and tracking your whereabouts through your phone. And because of how the courts have ruled, there's nothing you can do about it. Learn all about employer spying here. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.