News tagged with wave front

Novel beams made of twisted atoms

Physicists have, for the first time, now built a theoretical construct of beams made of twisted atoms. These findings by Armen Hayrapetyan and colleagues at Ruprecht-Karls-University Heidelberg in Germany ...

Aug 07, 2013 4.9 / 5 (7) 0 | with audio podcast

Evolution during human colonizations

Most human populations are the product of a series of range expansions having occurred since modern humans left Africa some 50,000 years ago to colonize the rest of the world, but how have these processes influenced today's ...

Nov 03, 2011 4.6 / 5 (11) 3 | with audio podcast

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Weathering the storm

Old-timers sharing childhood stories about growing up in Maine sometimes recount hiking 10 miles uphill in 3 feet of snow to get to school—and home.

Sep 03, 2014 5 / 5 (1) 0

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