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Artificial light could bring on insomnia in older adults
Brightness from outdoor light sources at night is causing insomnia among older adults, a study said.
Feeling gloomy? Why you should ditch your addiction to junk light this winter
If I were to offer you the choice between a bucket of deep-fried chicken or a slice of organic roast chicken, you would be pretty clear on what would be the healthy option. Omega-3s, organically grown, bioflavonoids, antioxidants… we understand how important food is to our health.
Scottish researchers create 'crystal maze' for light
Researchers at Heriot-Watt University in Edinburgh created a ‘crystal maze’ to control how light spreads.
New light momentum measuring device illuminates 150-year-old scientific principle
Light Momentum theory is receiving renewed interest in the scientific community thanks to a fresh approach involving radiation pressure. Who says you can't teach an old dog new tricks?
Smart window controls light and heat, kills microorganisms
A new smart window offers more than just a nice view —it also controls the transmittance of sunlight, heats the interiors of buildings by converting solar radiation into heat, and virtually eliminates E. coli bacteria living on the glass. In the future, such sterile smart windows may be used in airplanes, hospitals, public transportation, and other areas.
Light could make some hospital surfaces deadly to germs
Shining light on a new material is all it takes to make its surface toxic to germs. If used on the outside of instruments, on countertops and more, the technology might one day help hospitals limit the spread of infections, including ones that no longer respond to drugs.
Light from mobile phones, street lights could up cancer risk
Reigniting the debate over exposure to the ‘blue light’ emitted by outdoor LED screens and heightened risk of cancer, an international team of researchers have concluded that there is a ‘strong link’ between the two.
FDA approves contact lenses that are color-adapted to light
The US Food and Drug Administration (FDA) cleared on Tuesday the first contact lens to incorporate an additive that automatically darkens the lens when exposed to bright light.
Sunlight funnel collects light from all directions
Researchers have designed a light-harvesting funnel that absorbs sunlight from any direction and concentrates it onto smaller areas, such as high-performance solar cells. By stacking multiple funnels, each tuned to a different wavelength of light, the researchers expect that it could be possible to convert the entire solar spectrum into electricity with high efficiency.
Special UV light safely kills airborne flu virus
Continuous low doses of far ultraviolet C (far-UVC) light can kill airborne flu viruses without harming human tissues, according to a new study at the Center for Radiological Research at Columbia University Irving Medical Center (CUIMC).
Does dim light make us dumber?
Spending too much time in dimly lit rooms and offices may actually change the brain's structure and hurt one's ability to remember and learn, indicates groundbreaking research by Michigan State University neuroscientists.
China's solar expressway meets light of day
China opened a one kilometer section solar expressway for testing.
Light pollution affects environment
When Thomas Edison patented the first commercially successfully light bulb in 1879, it’s certain that humanity took a huge step forward. No longer would people be restrained from activity or endeavor by the rising and falling of the sun; the era of artificial light had begun.
Metasurface generates new states of light for fundamental research
There's nothing new thing under the sun — except maybe light itself.

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