News tagged with light
Using a miniature electronic device implanted in the brain, scientists have tapped into the internal reward system of mice, prodding neurons to release dopamine, a chemical associated with pleasure.
Neuroscience Apr 11, 2013 | 5 / 5 (5) | 3 |
Scientists at Washington University School of Medicine in St. Louis have shown they can coax cells to move toward a beam of light. The feat is a first step toward manipulating cells to control insulin secretion ...
Medical research Apr 08, 2013 | 5 / 5 (3) | 0 |
By stimulating one part of the brain with laser light, researchers at the National Institutes of Health (NIH) and the Ernest Gallo Clinic and Research Center at UC San Francisco (UCSF) have shown that they ...
Neuroscience Apr 03, 2013 | 5 / 5 (11) | 7 |
(Medical Xpress)—Blind mice can see again, after Oxford University researchers transplanted developing cells into their eyes and found they could re-form the entire light-sensitive layer of the retina.
Ophthalmology Jan 08, 2013 | 5 / 5 (10) | 0 |
Blocking a single tiny blood vessel in the brain can harm neural tissue and even alter behavior, a new study from the University of California, San Diego has shown. But these consequences can be mitigated ...
Neuroscience Dec 16, 2012 | 3.5 / 5 (2) | 1 |
(Medical Xpress)—When you walk into a darkened room, your first instinct is to feel around for a light switch. You slide your hand along the wall, feeling the transition from the doorframe to the painted ...
Neuroscience Dec 11, 2012 | 5 / 5 (4) | 3 |
(Medical Xpress)—Chemists and vision scientists at the University of Illinois at Chicago have designed a light-sensitive molecule that can stimulate a neural response in cells of the retina and brain—a ...
Medical research Nov 14, 2012 | 4.8 / 5 (4) | 0 |
A team of University of California, Berkeley, scientists in collaboration with researchers at the University of Munich and University of Washington in Seattle has discovered a chemical that temporarily restores some vision ...
Neuroscience Jul 25, 2012 | 5 / 5 (2) | 3 |
In a pair of related studies, scientists from the Florida campus of The Scripps Research Institute have identified several proteins that help regulate cells' response to lightand the development of night blindness, ...
Medical research Jun 11, 2012 | 5 / 5 (2) | 0 |
Every new imaging technology has an aura of magic about it because it suddenly reveals what had been concealed, and makes visible what had been invisible. So, too, with photoacoustic tomography, which is allowing ...
Medical research Mar 22, 2012 | 4.9 / 5 (8) | 0 |
(Medical Xpress) -- Millions of people experience depression and lower levels of energy in the winter due to seasonal-affective disorder (SAD), or the winter blues. Since the disorder is thought ...
Medical research Mar 07, 2012 | 4.9 / 5 (9) | 12 |
The human eye long ago solved a problem common to both digital and film cameras: how to get good contrast in an image while also capturing faint detail.
Medical research May 03, 2011 | 4.7 / 5 (7) | 1 |
Researchers from Boston University School of Medicine (BUSM) have discovered that eating mushrooms containing Vitamin D2 can be as effective at increasing and maintaining vitamin D levels (25–hydroxyvitamin D) as taking ...
Health Apr 22, 2013 | 5 / 5 (3) | 1 |
(Medical Xpress)—Healthy cells don't just happen. As they grow and divide, they need checks and balances to ensure they function properly while adapting to changing conditions around them.
Cancer Apr 05, 2013 | 5 / 5 (4) | 2 |
Scientists can see which cells communicate with each other in the brain, by flipping a neural light switch
There are cells in your brain that recognize very specific places, and have that as one of their main jobs. These cells, called place cells, are found in an area behind your temple called the hippocampus. ...
Neuroscience Apr 04, 2013 | 5 / 5 (3) | 0 |
Light is electromagnetic radiation, particularly radiation of a wavelength that is visible to the human eye (about 400–700 nm, or perhaps 380–750 nm.) In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.
Three primary properties of light are:
Light, which exists in tiny "packets" called photons, exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.
For more information about Light, read the full article at
This text uses material from Wikipedia and is available under the GNU Free Documentation License.