02231cam a2200457 i 4500 373981417 TxAuBib 20190325120000.0 180719s2019||||||||||||||||||||||||eng|u bl2019002866 9781454926917 SAL 16.95 1454926910 SAL 16.95 (OCoLC)1045199885 TxAuBib rda Wallmark, Laurie,. Hedy Lamarr's double life / 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] ©2019. 42 unnumbered pages : color illustrations ; 29 cm. txt rdacontent n rdamedia nc rdacarrier 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. 900 Lexile. 20190328. mam. Lamarr, Hedy, 1913-2000 Juvenile literature. Lamarr, Hedy, 1913-2000. Actresses United States Biography Juvenile literature. Spread spectrum communications Juvenile literature. Inventors Biography Juvenile literature. Inventors. World War, 1939-1945 Participation, Female Juvenile literature. Telecommunication Biography. Actors and actresses. Women Biography. Biographies. Wu, Katy,.