(Phys.org) —Some animals—like the octopus and cuttlefish—transform their shape based on environment, fending off attackers or threats in the wild. For decades, researchers have worked toward mimicking similar biological ...
Materials Science
Aug 1, 2013
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(PhysOrg.com) -- Researchers at the Nottingham Trent University have gathered new evidence that a 4000-year-old monolith was aligned to be an astronomical marker. The 2.2 metre high monument, located in the Peak District ...
Archaeology
Mar 27, 2012
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In the search for extraterrestrial intelligence, astronomers have hunted for radio signals and ultra-short laser pulses. In a new paper, Avi Loeb (Harvard-Smithsonian Center for Astrophysics) and Edwin Turner (Princeton University) ...
Astronomy
Nov 3, 2011
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Canon Inc. announced today that it has developed the world's largest CMOS image sensor, with a chip size measuring 202 x 205 mm. Because its expanded size enables greater light-gathering capability, the sensor is capable ...
Hardware
Aug 31, 2010
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0
One of the most promising technologies for making inexpensive but reasonably efficient solar photovoltaic cells just got much cheaper. Scientists at the University of Toronto in Canada have shown that inexpensive nickel can ...
Nanomaterials
Aug 3, 2010
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The public's "right to starlight" is steadily being eroded by urban illumination that is the bane of astronomers everywhere, the International Astronomical Union said on Friday.
Astronomy
Aug 15, 2009
38
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Around a billion people living in the world's major cities are being invited to turn off their lights at 8:30 p.m. local time on Saturday for "Earth Hour," described as the biggest mass campaign to demand action on climate ...
Environment
Mar 26, 2009
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0
The widespread transition from artificial light at night (ALAN) to light-emitting diodes (LEDs) has inadvertently given rise to a new challenge—blue light pollution and its associated adverse effects.
Environment
Jan 16, 2024
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Mimicking the performance of the human visual system is viewed as a difficult endeavor because of the extremely complex optical elements involved. In new work, researchers show that it's possible to create a lens system that ...
Optics & Photonics
May 16, 2023
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11
Motivated by the limitations of scanning approaches to photoacoustic microscopy, an international group supervised by Emmanuel Bossy of Université Grenoble Alpes experimented with structured illumination using known and ...
Optics & Photonics
Mar 20, 2023
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