News tagged with light intensities

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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Astronomers measure nearby Universe's 'cosmic fog'

Researchers from the Laboratoire Leprince-Ringuet (CNRS/École Polytechnique) have carried out the first measurement of the intensity of the diffuse extragalactic background light in the nearby Universe, a fog of photons ...

dateJan 20, 2013 in Astronomy
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Galaxy-wide echoes from the past

(Phys.org)—A new galaxy class has been identified using observations from ESO's Very Large Telescope, the Gemini South telescope, and the Canada-France-Hawaii Telescope. Nicknamed 'green bean galaxies' because of their ...

dateDec 05, 2012 in Astronomy
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Record-setting X-ray jet discovered

A jet of X-rays from a supermassive black hole 12.4 billion light years from Earth has been detected by NASA's Chandra X-ray Observatory. This is the most distant X-ray jet ever observed and gives astronomers a glimpse into ...

dateNov 28, 2012 in Astronomy
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