Squids, octopuses, cuttlefish, amphibians, and chameleon lizards are among the animals that can change the color of their skin in a blink of an eye. They have photoreceptors in their skin that operate independently of their ...
Evolution
Oct 16, 2019
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Scientists from The University of Manchester have found a way to trick the eye into thinking the world is brighter than it actually is.
Cell & Microbiology
Jan 28, 2019
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In dim light a cat sees much better than you do, as do dogs and nocturnal animals. That's because the structure of a cat's eye has a tapetum lucidum, a mirror-like layer immediately behind the retina. Light entering the eye ...
(PhysOrg.com) -- Sometimes when people talk about solar energy, they tacitly assume that we're stuck with some version of the silicon solar cell and its technical and cost limitations. Not so.
Materials Science
Nov 29, 2011
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(PhysOrg.com) -- ESO's VISTA telescope has created the widest deep view of the sky ever made using infrared light. This new picture of an unremarkable patch of sky comes from the UltraVISTA survey and reveals more than 200 ...
Astronomy
Mar 21, 2012
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Astronomers who scan the skies for returning comets are often disappointed. Sometimes these icy visitors from the fringes of our planetary system end up being much fainter than predicted.
Space Exploration
Mar 25, 2016
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University of Utah engineers have developed a polarizing filter that allows in more light, leading the way for mobile device displays that last much longer on a single battery charge and cameras that can shoot in dim light.
Optics & Photonics
Nov 20, 2014
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How mammals perceive light changes between night and day. Researchers at Aalto University and the University of Helsinki discovered that mice were better at finding a dim light in pitch-darkness in experiments done at night ...
Molecular & Computational biology
Dec 19, 2019
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(PhysOrg.com) -- As a child in Mali, Abdrahamane Traore often did his homework by the sooty, dim light of a kerosene lamp.
Energy & Green Tech
Jan 26, 2011
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(PhysOrg.com) -- Lighting accounts for about one-quarter of the electricity consumed by the commercial sector in the United States and energy-efficient lamps, ballasts, and lighting controls represent significant opportunities ...
Energy & Green Tech
Jun 7, 2010
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