Stuff You Should Know

During World War II, Nazis invaded the United States with saboteurs bent on fomenting chaos. Three times. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

In 1974, Chinese farmers discovered the first of what would number 7,000 terracotta soldiers meant to protect China's first emperor in the afterlife. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

What began as a pair of teens who made a film for their grandparents has exploded into its own art form. Learn all about how stop-motion Lego films are made. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Pyramids can be found in ruins around the world, but no civilization perfected the feat of engineering like Pharaonic Egypt. Learn about the mysteries that still surround these giants. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Don't be confused - this one is about actual circus acts made of family members, not the controversial comic strip. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Did you know some of our most beloved movies originally had different, sometimes better, endings? That is until they were tested in front of focus groups. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Sun Tzu said know your enemy, and so it is in this spirit that we present this episode on one of the worst airborne pests in the world. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Well-planned landfills have only recently come into widespread use. Recently, waste managers have found that they work a little too well and now the landfill is being reinvented. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

What do little baby ducklings have to do with Nazis? A lot actually. Find out about animal imprinting experiments and the debate over their ethics. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

You should never BASE Jump. It is one of the most genuinely dangerous sports on the planet. But with that out of the way, you should definitely learn all about this pastime where people jump from tall structures and outcroppings for fun and thrills. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

From prehistoric logs across streams to the 102-mile Kunshan Grand Bridge, nature works ceaselessly to take down spans. Learn about the fascinating ins and outs of bridge design and building and the mind-boggling challenges structural engineers face. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

In 1977, Ohio State astronomers discovered a radio transmission from space that was 30 times louder than the cosmic background noise. Since then every explanation of what it was has fallen short and the Wow! Signal remains possible evidence of alien life. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

It's easy to overlook the importance of ocean currents - they move along out at sea, while we stay mostly on land. But we are globally affected by them every day. Currents form the base of the food chain, drive weather and keep life as we know it going. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

The street gang problem in America peaked in the 1990s, but recent FBI reports find that gang membership doubled from 2006-2011. What's driving this increase, and gangs in general? Wander into gang territory with Josh and Chuck in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Tupperware won immediate design acclaim when it was released in 1947, but it took a pioneering female executive to make a line of plastic food storage into an icon of the American postwar boom. Learn about the surprisingly intriguing history of Tupperware. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Junk food is literally that, empty calories of energy that provide little nutritional value and usually are stored as fat. Yet junk food is irresistible and for good reason - companies spend tens of millions engineering it to be that way. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Science doesn't have a good explanation for why we sense color, yet it is everywhere and affecting us all the time. But why should minutely different wavelengths of light have such an impact on our moods and motivations? Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Some of it seems innocuous enough: protecting kids from unseemly sites or intellectual property from piracy. But the tools to protect these things are the same that governments can also use to censor ideas and quell dissent. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Tens of millions of Scouts, and their parents, have taken standard blocks of wood and turned them into cars that zip along at up to 20 mph. Learn about the origin, physics and more of Pinewood Derbies in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

The FDA was the first consumer protection agency in the US. Since 1906, it's been issuing regulations meant to protect Americans from tainted food, ineffective drugs and pacemakers that don't work. But is the FDA too cozy with industries it regulates? Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.