Discovery Channel

How We Invented The World: Hollywood's Brilliant Inventor

Early in World War II, Hollywood actress - and accomplished radio engineer - Hedy Lamarr discovers how to use frequency-hopping to keep wireless communications private and secure.

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Stacks of Sean Conway's book, Hell and High Water - (DCL)

Win a signed copy of Hell and High Water by Sean Conway

Win a signed copy of Hell and High Water by Sean Conway

Bear - (DCL)

Smithsonian.com Photo Competition

Smithsonian.com has announced the finalists of their 12th Annual Ph...

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