01811cam a2200313 4500 759423970 TxAuBib 20190122120000.0 180719s2019||||||||||||||||||||||||eng|u 9781454926917 hbk. $16.95 1454926910 hbk. $16.95 (OCoLC)1045199885 YDX eng rda YDX OCLCQ JP3 TxGR TxAuBib Wallmark, Laurie, author. Hedy Lamarr's double life [Book] / written by Laurie Wallmark ; illustrated by Katy Wu. Hedy Lamarr's double life : Hollywood legend and brilliant inventor. New York : Sterling Children's Books, [2019] 42 unnumbered pages : color illustrations ; 29 cm. Includes bibliographical references. Hedy Lamarr became a movie legend, but her true loves were always science and engineering. During World War II, Hedy collaborated with another inventor on an innovative technology called frequency hopping. It was designed to prevent the enemy from jamming torpedo radio signals and commanding weapons to go off course. Frequency hopping is still used today to keep our cell phone messages private and defend our computers from hackers. In this biography, meet the real Hedy Lamarr : not only a beloved film star, but a visionary scientist who helped create the world we live in today. 20190122. Lamarr, Hedy 1913-2000. Actresses United States Biography. Spread spectrum communications. Inventors Biography. World War, 1939-1945 Participation, Female. Wu, Katy, illustrator. RV8