Temporal control of light echoes

Scientists at Paderborn University, the Technical University of Dortmund and the University of Würzburg have for the first time used laser pulses to precisely control photon echoes, which can occur when light waves superimpose ...

Why people are falling for Amazon's Echo

On Christmas Day, Liz Philips and her two sons Sutton, 8, and Greyson, 10, welcomed a new member into their San Diego home. They called her Alexa, and though not your traditional bundle of joy, she was immediately embraced ...

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