Chewing gum is everywhere today, but where does it come from? What did we chew before Bubblicious? How does gum affect us? Robert and Joe explore in this episode of Invention. (Originally published 7/8/2019)
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Penicillin
Chewing Gum
The Museum
Dreams of a Gastro Automaton
The Condom
The Atlatl Spear Thrower
Listener Mail: Mothers of Invention
The Motion Picture, Part 3
A Motion Picture Mystery
The Motion Picture, Part 2
The Motion Picture, Part 1
The Camera, Part 3
The Camera, Part 2
The Camera, Part 1
Camera Obscura
Board Games, Part 2
Board Games, Part 1
Toilet, Part 2
Toilet, Part 1
Braille
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