How Soap Works

Looking back 300 years on, it’s easy to overgeneralize why the Salem Villagers decided to persecute (and execute) their neighbors. But as much as this story has become an American history chestnut, we still don’t understand why Salem lost its mind. Listen to this classic episode ...  Show more

Get yourself ready to freak out with this year’s extra-freak Halloween freak-fest, starring the voice acting talents of Chuck and Josh. This year we feature stories from WW Jacobs and WF Harvey, both of whom, if they were alive, would love this episode.See omnystudio.com/listener ...  Show more

We’re all probably using a lot more soap these days, but… what is it exactly? How does it work? Who invented it and how has it changed the world? Join Robert and Joe as they explore the invention of Soap. This episode marks the final installment of Invention as a standalone podca ...  Show more

Today, soap is ubiquitous. It comes in thousands of forms, brands, and varieties -- but this wasn't always the case. In today's episode, Ben, Noel and Max explore the theoretical origin story of soap, and how humanity eventually decided (after a few stops and starts) to literally ...  Show more

All over the world, for all of human history – and probably going back to our earliest hominid ancestors – people have found ways to try to keep themselves clean. But how did soap come about? 

Research: