Invention

Invention Classic: Chewing Gum

Invention Classic: The Museum

Invention Classic: Sun Glasses

Invention Classic: Penicillin

Invented Words, Part 2

Invented Words, Part 1

Invention: Barbed Wire

The Fire Extinguisher, Part 2

The Fire Extinguisher, Part 1

Strike the Match, Part 3

Strike the Match, Part 2

Strike the Match, Part 1

The Pencil

Beachbum Berry on the Invention of the Mai Tai

Invention Classic: Chopsticks

Listener Mail: Year End Wrap-Up, Part 2

Listener Mail: Year End Wrap-Up, Part 1

Toys, Part 3

Toys, Part 2