American engineer Edwin Armstrong, inventor of the superheterodyne radio receiver, with his wife Esther Marion MacInnis. Armstrong built the radio as a gift for Esther. Palm Beach, Florida, USA (1923).
Hedy Lamarr, dubbed one of the most gorgeous women in Hollywood, earned recognition in a field quite different from entertainment. She co-invented an early technique for spread spectrum communications.
In 1927, American pilot Charles A. Lindbergh landed in Paris, successfully completing the first solo, nonstop transatlantic flight and the first ever nonstop flight between New York and Paris.
On this day in 1876, the first discernible speech was transmitted over a telephone system when inventor Alexander Graham Bell summoned his assistant, “Mr. Watson, come here, I want you.” Bell had received a comprehensive telephone patent just three days before.
