Hedy Lamarr, famous movie star, and also co-inventor of spread spectrum wireless communication, the basis of cell phone and wifi broadcast. Hedy Lamarr famous-people、Famous people、Hedy、inventor、Lamarr、spectrum、spread 著名的人民、名人、七喜、發明者、拉馬爾、光譜、傳播 資料來源：openclipart ( https://openclipart.org/ )
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