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Technology of the 1920s

By leslieknopee

  • First Radio Broadcast

    The radio station KDKA was the first station in America to own a license and broadcast on radio on November 2nd, 1920.

  • The Band-Aid

    In 1920, Earle Dickson invented the band-aid for his wife, Josephine.

  • The Hair Dryer

    The first household hair dryer was invented in 1920, though I'm not sure who had the idea. The original idea for the invention was by Alexander F. Godefroy.

  • The Lie Detector

    In 1921, John Augustus Larson invented the lie detector.

  • The Convertible

    Ben Ellerbeck designed the first model of the convertible in 1922.

  • The Watch

    John Harwood invented the first automatic wristwatch in 1923

  • Frozen Food

    Clarence Birdseye experimented with the idea of frozen food in 1924.

  • Masking Tape

    In 1925, Richard Drew invented masking tape.

  • The Liquid Fueled Rocket

    The first liquid-fueled rocket was launched by Robert Goddard in 1926.

  • Penicillin

    Alexander Fleming discovered penicillin in 1928.