Did the CIA test LSD on unsuspecting Americans?

It's a pretty amazing feat to dig a tunnel beneath a body of water that's big enough (and safe enough) to drive a train through. While humans have been digging underwater tunnels for thousands of years, it wasn't until the late 19th century that it became viable on a large scale. In this episode, Chuck and Josh explore the ins and outs of the engineering triumph that is digging below water. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

12 Joulu 201331min

Thanks to the amazing properties of magnets, clever engineers have figured out how to make entire trains levitate above their tracks, letting them move frictionlessly and allowing them to reach incredible speeds. Learn about how maglev trains work and what's taking so long for us to get aboard in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

5 Joulu 201330min

In this episode, Josh and Chuck teach you everything you ever wanted to know but were too freaked out to ask about castration. Learn about the history of removing male genitalia, why some parents had it done to their sons, how the state has become the main agent of castration in the last several decades, and why some people who are not crazy decide to become castrated themselves. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

3 Joulu 201340min

On the day after Thanksgiving, Americans go kind of crazy for the deep discount sales that kick off the holiday shopping season in stores. So crazy, in fact, at least four people have lost their lives and as many as 63 others have been injured during Black Friday sales. But as profitable as Black Friday is, some retailers are thinking about discontinuing the tradition to find ways to make even more money. Learn all about this bizarre, uniquely American holiday custom in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

28 Marras 201339min

Recorded live at the Los Angeles PodFest, this episode of SYSK delves into the longstanding attempt to break down what humans find funny into a scientifically reproducible formula. Join Josh and Chuck as they examine just why this extremely unfunny quest will (thankfully) never be realized. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

26 Marras 201342min

For the 50th anniversary of the assassination of President John F. Kennedy in Dallas, Josh and Chuck delve into the killing, the investigations and the conspiracy theories to get to the bottom of an enduring national question. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

21 Marras 201344min

People have been consuming chocolate for at least a couple thousand years, but it's only been in the last hundred that humanity has arrived at its crowning achievement: the smooth, creamy milk chocolate bar. Find out about the history of chocolate, how it's made and how it affects your mood in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

19 Marras 201340min

If you've ever been bitten by a wolf, you're probably familiar with the anxiety of waiting for the next full moon to see if you become a werewolf. Learn all about the lore, mental illness and rules behind lycanthropy, one of civilization's oldest metaphors. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

14 Marras 201332min