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Actress Upgrades Torpedoes | Dark Matters

Hollywood actress Hedy Lamarr and Dr. George Antheil invent frequency hopping for guiding torpedoes to help save the U.S. Navy. Get more Dark Matters | Visit http://science.discovery.com/tv/dark-matters/#mkcpgn=ytsci1Subscribe to Science Channel! | http://www.youtube.com/subscription_center?add_user=sciencechannel
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