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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Review: Apple Pay in action

If there ever comes a day I can ditch my wallet and use my phone to pay for everything, I'll look back to my first purchase through Apple Pay: a Big Mac and medium fries for $5.44. That wallet-free day won't ...

2 hours ago
1.8 / 5 (6) 0

Topological defects in the fabric of space and time

A cosmic string is a very long (possibly as long as the diameter of the visible universe), very thin (less than the width of a proton) high-density object formed during the early moments of the big bang. ...

Oct 10, 2014
2.9 / 5 (18) 11

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