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The Microwave Oven

By JennaNodine

  • Vacuum tube radio transmitters developed

    Vacuum tube radio transmitters developed

  • First demonstration of food cooking with shortwave transmitter at Chicago World's Fair

    First demonstration of food cooking with shortwave transmitter at Chicago World's Fair

  • Application is patented in U.S. by Bell Laboratories

    Application is patented in U.S. by Bell Laboratories

  • Specific heating effect of a high-powered microwave accidentally discovered

  • First microwave oven comercially available, costing $5,000

    First microwave oven comercially available, costing $5,000

  • 25% of U.S. housholds have a microwave

  • 90% of U.S. households have a microwave

    90% of U.S. households have a microwave