News tagged with human eye
Scientists solve mystery of the eye
(PhysOrg.com) -- Scientists have a good overall understanding of human vision: when light enters our eyes, it is focused by the lens and strikes the retina in the back of the eye. The light causes some of ...
Nov 17, 2011 |
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Physicists Explain How Human Eyes Can Detect Quantum Effects
(PhysOrg.com) -- By greatly amplifying one photon from an entangled photon pair, physicists have theoretically shown that human eyes can be used as detectors to observe quantum effects. Usually, detecting ...
Sep 29, 2009 |
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Professor proposes challenge to prove whether people can see entangled images
(PhysOrg.com) -- Geraldo Barbosa, professor of electrical engineering and computer science at Northwestern University has posed an interesting challenge. He wonders if the human eye and brain together are ...
Feb 29, 2012 |
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High-quality white light produced by four-color laser source
(PhysOrg.com) -- The human eye is as comfortable with white light generated by diode lasers as with that produced by increasingly popular light-emitting diodes (LEDs), according to tests conceived at Sandia ...
Oct 26, 2011 |
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New technique that scrambles light may lead to sharper images, wider views
When photographers zoom in on an object to see it better, they lose the wide-angle perspective -- they are forced to trade off "big picture" context for detail. But now an imaging method developed by Princeton ...
Apr 21, 2009 |
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Researchers develop optimal algorithm for determining focus error in eyes and cameras
University of Texas at Austin researchers have discovered how to extract and use information in an individual image to determine how far objects are from the focus distance, a feat only accomplished by human and animal visual ...
Technology / Computer Sciences
Sep 26, 2011 |
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LED lights point shoppers in the right direction
Looking for an item in a large department store or mall can be like searching for a needle in a haystack, but that could change thanks to a hybrid location-identification system that uses radio frequency transmitters and ...
Jan 26, 2012 |
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Terminator-style info-vision takes step towards reality
The streaming of real-time information across your field of vision is a step closer to reality with the development of a prototype contact lens that could potentially provide the wearer with hands-free information ...
Nov 21, 2011 |
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New invisibility cloak hides objects from human view
For the first time, scientists have devised an invisibility cloak material that hides objects from detection using light that is visible to humans. The new device is a leap forward in cloaking materials, according to a report ...
Jul 27, 2011 |
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Baby's first dreams: Research reveals sleep cycles in early fetus
After about seven months growing in the womb, a human fetus spends most of its time asleep. Its brain cycles back and forth between the frenzied activity of rapid eye movement (REM) sleep and the quiet resting ...
Medicine & Health / Neuroscience
Apr 13, 2009 |
4.6 / 5 (8) |
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Study uncovers clues to what makes anesthetics work
Physicians use inhalation anesthetics in a way that is incredibly safe for patients, but very little is known about the intricacies of how these drugs actually work in children and adults. Now, researchers have uncovered ...
Dec 22, 2011 |
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Webb telescope technologies already helping human eyes
Even while construction of the James Webb Space Telescope is underway on the most advanced infrared vision of any space observatory, its technologies are already proving useful to human eye health here on ...
Space & Earth / Space Exploration
Jul 29, 2011 |
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Scientists offer new insights into early eye evolution
Scientists at the University of Hawaii at Manoa's Kewalo Marine Laboratory in Honolulu have discovered light-detecting cells in the embryo of a brachiopod, a marine invertebrate, whose organization may be similar to the primitive ...
Medicine & Health / Medical research
Mar 02, 2011 |
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Iridescence invisible to human eye enables bees to view flowers in different colours
(PhysOrg.com) -- Bees see some flowers in multicolour because of previously unknown iridescence of the petals, usually invisible to the human eye, researchers from the University of Cambridge report this week ...
Biology /
Jan 05, 2009 |
5 / 5 (5) |
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Vigilant camera eye
An innovative camera system could in future enhance security in public areas and buildings. Smart Eyes works just like the human eye. The system analyzes the recorded data in real time and then immediately ...
Sep 20, 2010 |
5 / 5 (6) |
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