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Ultrashort-Pulse Lasers: Big Payoffs in a Flash

The briefest man-made events, pulses of laser light lasting millionths of a nanosecond, can be used for delicate eye surgery, high-bandwidth communications and stop-motion studies of molecules reacting

By John-Mark Hopkins and Wilson Sibbett

The Plan to Save Fallingwater

This breathtaking house designed by Frank Lloyd Wright was in danger of collapse until an engineering firm found a way to stop it from falling down

By Robert Silman

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