Vulcanite Dentures
99% Invisible27 Jan 2012

Vulcanite Dentures

Before the 1850s, dentures were made out of very hard, very painful and very expensive material, like gold or ivory. They were a luxury item. The invention of Vulcanite hard rubber changed everything. It was moldable, it could be precisely … Continue reading →

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Episoder(775)

Devil’s Rope

Devil’s Rope

In the mid 1800s, not many (non-native) Americans had ever been west of the Mississippi. When Frederick Law Olmstead visited the west in the 1850s, he remarked that the plains looked like a sea of gra...

18 Mar 201520min

Coin Check

Coin Check

The United States Military is not known for being touchy-feely. There’s not much hugging or head-patting, and superiors don’t always have the authority to offer a serviceman a raise or promotion. When...

11 Mar 201515min

Palm Reading

Palm Reading

Reports of palm theft have appeared in LA, San Diego, and Texas; palm rustling also gets a mention in Susan Orlean’s The Orchid Thief. To understand why someone would want to steal a palm tree, we nee...

4 Mar 201513min

PDX Carpet

PDX Carpet

Portlanders have a tradition when visiting their airport: taking a picture of their feet. It’s not to show off their shoes, but rather, what’s under them. They are documenting the famous PDX airport c...

24 Feb 201514min

Game Over (R)

Game Over (R)

A few months before the end of the world, everyone was saying their goodbyes. The world that was ending was The Sims Online, an online version of The Sims. Even though The Sims was one of the most pop...

18 Feb 20159min

Guerrilla Public Service

Guerrilla Public Service

At some point in your life you’ve probably encountered a problem in the built world where the fix was obvious to you. Maybe a door that opened the wrong way, or poorly painted marker on the road. Most...

11 Feb 201512min

La Mascotte

La Mascotte

The idea of the mascot came to America by way of a popular French opera from the 1880s called La Mascotte. The opera is about a down-on-his luck farmer who’s visited by a girl named Bettina; as soon a...

3 Feb 201515min

Under The Moonlight

Under The Moonlight

In 1885, Austin, Texas was terrorized by a serial killer known as the Servant Girl Annihilator.  The murderer was never actually found, but he claimed eight victims, mostly black servant girls, all at...

28 Jan 201514min

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