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Using lasers to see the shape of molecules

A scientist in a crisp, white lab coat and protective eye goggles sits behind a safety shield, controller in hand. In front of him is a powerful titanium-sapphire laser, aimed at a crystal lens. His thumb gently squeezes ...

dateJun 24, 2015 in General Physics
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Image: Vanguard satellite, 1958

One of the Vanguard satellites is checked out at Cape Canaveral, Florida in 1958. Vanguard 1, the world's first solar-powered satellite, launched on St. Patrick's Day (March 17) 1958. It was designed to test ...

dateMar 18, 2015 in Space Exploration
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