The highly effective optical means by which silvery fish, such as the European sardine and Atlantic herring, camouflage themselves from predators is explained this month in Nature Photonics.
Optics & Photonics
Oct 21, 2012
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(PhysOrg.com) -- Scientists in Israel and the UK have uncovered the details of how certain fish and spiders create their iridescent scales and silvery skins.
Optics & Photonics
Dec 9, 2009
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(Phys.org)—Scientists are doing it all the time, attempting to mimic systems and structures of plants and animals to manufacture something entirely new. A group of South Korean scientists have collaborated to translate ...
(PhysOrg.com) -- The "habitable zone" is the region around a star where a suitable planet could sustain the conditions necessary for life. Most astronomers take it to be the region where the balance between stellar radiation ...
Astronomy
Aug 22, 2011
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(PhysOrg.com) -- A new nanocoating ensures a perfectly non-reflecting view on displays and through eyeglasses. The necessary surface structure is applied to the polymeric parts during manufacture, obviating the need for a ...
Nanomaterials
May 4, 2010
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An image from the international Cassini spacecraft provides evidence of rainfall on the north pole of Titan, the largest of Saturn's moons. The rainfall would be the first indication of the start of a summer season in the ...
Space Exploration
Jan 16, 2019
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Metamaterials researchers at Duke University have demonstrated the design and construction of a thin material that can control the redirection and reflection of sound waves with almost perfect efficiency.
Condensed Matter
Apr 10, 2018
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(Phys.org) —Quasars are active black holes—primarily from the early universe. Using a special method where you observe light that has been bent by gravity on its way through the universe, a group of physics students from ...
Astronomy
Aug 7, 2013
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Imagine a world where the rooftops and pavements of every urban area are resurfaced to increase the reflection of the Sun's light rays. Well, this is exactly what a group of Canadian researchers have done in an attempt to ...
Environment
Apr 12, 2012
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How large would an extraterrestrial city have to be for current telescopes to see it? Would it need to be a planet-sized metropolis like Star Wars' Coruscant? Or could we see an alien equivalent of Earth's own largest urban ...
Astrobiology
Jun 19, 2023
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