News tagged with intensity

Accelerating neutral atoms on a table top

Conventional, as well as compact, laser-based particle acceleration schemes hinge on accelerating electric fields and are therefore ineffective for neutral atoms, which do not respond to these fields. Researchers at UPHILL ...

dateJan 27, 2013 in General Physics
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A light to manage learning exercises

Imagine a classroom. Students are working on their exercises. The hands go up to call the teacher or assistant. It is impossible for them to know who asked first, who most needs their help, how much time the students spent ...

dateJan 21, 2013 in Social Sciences
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Six degrees of inclination

(Phys.org)—Stay in a tilted bed for weeks with your head at the lower end and your body starts to change as if it were ageing prematurely or living in space. Twelve volunteers in ESA's bedrest study are enduring the testing ...

dateDec 05, 2012 in Space Exploration
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US roads, airports unready for extreme weather

(AP)—America's lifelines—its roads, airports, railways and transit systems—are getting hammered by extreme weather beyond what their builders imagined, leaving states and cities searching for ways to brace for more ...

dateNov 22, 2012 in Other
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