Stuff You Should Know

The unsolved murder spree of Jack the Ripper has captivated generations of amateur investigators, each with their own theory of the killer's identity. Learn more about one particularly thought-provoking suspect in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Personal rapid transport combines the best traits of subways and taxis, and costs less to build than light rail. Could this be the future of transportation? Check out this HowStuffWorks podcast and learn more about personal rapid transport. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Cities can become abandoned for a number of reasons, from economic meltdowns to nuclear catastrophes. Check out this HowStuffWorks podcast and learn more about modern abandoned cities. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Murphy's law originates in 1949, and states 'anything that can go wrong, will.' Check out this HowStuffWorks to learn more about how the Air Force discovered Murphy's law. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Could high-end digital auto systems such as blind-spot detection and collision prevention overcome the errors of human drivers? Check out this HowStuffWorks podcast to learn more about the death-proof cars of the future. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Oil shale is a term for oil trapped in rock, rather than existing in liquid form. Check out this HowStuffWorks podcast to learn more about the nature of oil shale. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Swear words are usually considered workplace taboos -- yet the debate continues over whether these words are inappropriate, or examples of free speech. Learn more about using swear words at work in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The United Nations has found that 22% of the world's population does not have access to clean drinking water. Could we fix the water shortage by manufacturing water? Check out this HowStuffWorks podcast to learn more about manufacturing water. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The most expensive toilet in the world is made of solid gold and can be found in Hong Kong. Learn more about the world's most expensive toilet in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Salt water fuel could be the next viable alternative to foreign oil. Learn about the ongoing research behind the concept of salt water fuel in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In recorded history, only two people have entered the eye of a tornado and returned to tell the tale. Learn more about the inside of tornadoes in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Yawning is contagious, but why? Check out the leading theories on contagious yawning and empathy in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

During times of emergency, people have been known to preform feats of great strength. Learn more about going from the dull stare of the dairy cow to the eye of the tiger in seconds flat. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Could the routine use of antibacterial soap increase the presence of drug-resistant bacteria in your home? Learn more about the disadvantages of anti-bacterial soap in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Does gum really stay in your stomach for Seven Years? Josh and Chuck take on the parental myth of gum swollowing. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Check out the story of Hachiko, a loyal Akita who waited for over ten years for his master to return. Learn more about Hachiko and loyalty in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

How does isolation spur evolution? Check out this HowStuffWorks podcast to learn more about speciation and evolution. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Why does toothpaste make orange juice taste bad? Chuck recounts his first-hand experience, and how it works. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The trolley problem is an ethical dilemma that proposes a difficult decision about choosing whether a group of strangers lives or dies. Learn more about ethics and the nature of sacrifice in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Sympathy pregnancy is the condition where a man feels pregnant while his wife actually is. Learn more about the symptoms for sympathy pregnancy in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.