Li-fi protocol allows use of the internet at the speed of light
Sisoft Company in Mexico has developed a technology that can illuminate a large work space, an auditorium or an office, while providing full mobile internet to every device that comes into the range of the ...
Solar-powered LED light made of bottles
Soraa LED light may dim 50-watt halogen rivals
Solar Cells with LEDs Provide Inexpensive Lighting
India's rural poor give up on power grid, go solar
(AP) -- Boommi Gowda used to fear the night. Her vision fogged by glaucoma, she could not see by just the dim glow of a kerosene lamp, so she avoided going outside where king cobras slithered freely and tigers carried off ...
World's smallest incandescent (nano)lamp with carbon nanotube filament
(PhysOrg.com) -- In an effort to explore the boundary between thermodynamics and quantum mechanics -- two fundamental yet seemingly incompatible theories of physics -- a team from the UCLA Department of Physics ...
Kenyan's mission: solar lamps to empower the poor
Evans Wadongo is not yet 25 but has already changed the lives of tens of thousands of his fellow Kenyans living in poor rural communities by supplying them with solar lamps.
Physicists Find a World of Motion In the Mystery of Aging Glass
(PhysOrg.com) -- Physicists super-cooled a liquid into glass in order to observe the slowing of particles. It's a material that still perplexes researchers despite thousands of years of household and industrial use.
Lightbulbs: The more efficient they get, the more light we use
This is a cautionary tale about a few porch lights. Once upon a time, porch lights had incandescent bulbs. Eventually, many residents subbed them out with those swirly compact fluorescent bulbs, which use a quarter of the ...
Study on effect of electricity on liquids bucks conventional science (w/ Video)
(PhysOrg.com) -- Whether gazing into lava lamps or watching balsamic vinegar mix with olive oil, people have long been transfixed by the seemingly mystical way that droplets of one liquid find each other within ...
Solar lantern lights up rural India's dark nights
For more than 100 Indian villages cut off from grid electricity, life no longer comes to an end after dark thanks to an innovative solar-powered lantern that offers hope to the nation's rural poor.
Scientists predict paradoxical laser effect
New laser-effect, discovered by scientists from the Vienna University of Technology, Princeton, Yale and ETH Zurich: If coupled, lasers can switch each other off, leading to a "laser blackout".
Columbia grads design solar-pillow lights for global village
Manufacturing method paves way for commercially viable quantum dot-based LEDs
University of Florida researchers may help resolve the public debate over America's future light source of choice: Edison's incandescent bulb or the more energy efficient compact fluorescent lamp. It could be neither.