Stuff You Should Know

The physics behind returning boomerangs literally may be the most difficult concept to understand in the entire body of science. Join Josh and Chuck as they try their absolute best to describe how boomerangs work - and maybe even pull it off! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Back in the 1970s, homeschooling was illegal in the U.S., but after activists of all stripes lobbied lawmakers, schooling kids at home has become a viable option for parents. And as more and more have chosen it, it's become more mainstream. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

There is a mysterious droning sound often described as like a diesel engine idling that is severely impacting the quality of life of 2 percent of people in places around the world. The thing is, no one knows what's causing it - or if it actually exists. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Like many huge discoveries, X-rays were accidentally stumbled upon. That serendipity led to a medical breakthrough still in use today. Learn about how X-rays are created and why they make such delightful images of our bones. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Leprosy, also known as Hansen's disease, used to mean a one-way ticket to banishment. But once medicine trained its sights on wiping out what might be the most ancient disease to afflict humans, it has become treatable and even accepted. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

A lot of great thinkers are warning that if humans are to survive as a species we are going to have to find another planet to live on. Terraforming, or engineering a planet to maintain all of the ingredients to sustain life, seems to be the answer. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

With billions of dollars raised, Kickstarter has singled itself out as the go-to site for creative crowdfunding. But not without some controversy along the way. Learn all about how this artistic business model operates in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Throughout the history of the world, there have been many cases of what is known as collective hysteria - groups of people, usually young women, who all exhibit the same physical symptoms of non-existent conditions. Is it psychosomatic? Is it group think? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The Enlightenment stands as the moment the West withdrew from superstition and found its faith in reason. Did it shift too far? Learn about this massive shift in thinking which we are still sorting through and coming to understand today. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

For a while in the 1980s, people were fascinated and confused about what exactly crop circles were. Now we know that they aren't signs left from aliens, but art made by humans. Learn all about these stunning, large form art installations in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

What was originally designed to encourage innovation by rewarding the people who create technological advances, the U.S. patent system has become a big mess. Wade into this surprisingly interesting mire to learn how to save this important institution. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The first limousines weren't even cars! Learn all about the history of limousines, how they're made and some of the most creative and expensive amenities you can find inside them in this episode with Josh and Chuck. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The world's energy consumption is ruining the planet but for decades physicists have been working on what could solve the world's energy and climate change woes for centuries to come - nuclear fusion. Learn about building stars on Earth in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Get ready to be creeped out and join Chuck and Josh as they read you with two spooky classic horror stories, The Striding Place and The Pale Man in this special bonus Halloween episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Ever since the Egyptians, humans have been evolving toward haunted house attractions. The level of sophistication in the scares and gore effects continues to rise over time, but the purpose remains the same: to scare the pants off you. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The strange disease of fatal familial insomnia was first recorded in the 18th century. Its victims lose their ability to sleep, slip into coma and die. The more we understand about FFI, the more mysterious it becomes. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The wild kingdom is filled with examples of animals that can camouflage themselves into their environment, but the means and the methods are also wildly varied. Learn about the ins and outs of blending in through this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Scientists believe that 99% of the estimated 50 billion species that have ever lived on Earth have disappeared through extinction. This is a natural process typically, but it can also be cataclysmic and it's becoming clear we are amid a massive one. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In 1963, 15 men got together in England to pull off one of the most daring heists in history. The Great Train Robbery was the crime of the century, capturing the public's attention and leaving them torn on who to root for - the cops or the robbers. Learn all about England's greatest heist in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Viruses are big jerks that invade regular cells and hold them hostage, making you sick while they're doing it. Learn everything you ever needed to know about viruses, including how the common cold works. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.