News tagged with light intensity
Cantilever bends repeatedly under light exposure for continuous energy generation
(PhysOrg.com) -- With the goal to enable small electronic devices to harvest their own energy, researchers have designed a device that can convert light and thermal energy into electricity. When exposed to ...
Oct 05, 2010 |
4.9 / 5 (20) |
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Scientists move objects across meter-scale distances using only light (w/ Video)
(PhysOrg.com) -- For more than 40 years, scientists have been using the radiation pressure of light to move and manipulate small objects in space. But until now, the movements have always been restricted to ...
Sep 30, 2010 |
4.8 / 5 (36) |
10
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Nano antenna concentrates light: Intensity increases 1,000-fold
(PhysOrg.com) -- Everybody who's ever used a TV, radio or cell phone knows what an antenna does: It captures the aerial signals that make those devices practical. A lab at Rice University has built an antenna ...
Sep 20, 2010 |
4.9 / 5 (21) |
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Even the midnight sun won't convince bees to work nights
Bees observe a strict working day, even in conditions of 24-hour sunlight. Researchers writing in the open access journal BMC Biology tagged worker bumblebees with a radio identifier, similar to an Oyster ...
Jun 28, 2010 |
4.5 / 5 (2) |
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Samsung Launches World's First RGB LED Data Projector
Samsung Electronics today announced the launch and availability of the world’s first RGB LED data projector with 1,000 ANSI lumens. With no lamp to replace, the SP-F10M has an LED light source that promises ...
Electronics / Consumer & Gadgets
Jun 25, 2010 |
3.3 / 5 (3) |
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The quality of the tomato depends more on temperature than on natural light
A team from the Basque Institute for Agricultural Research and Development (Neiker-Tecnalia, Spain) has questioned the generally held belief that the quality of tomatoes depends primarily on their exposure to natural light ...
Mar 25, 2010 |
4 / 5 (3) |
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Seeing the forest through the trees and seeing the trees through the leaves
Since the time of the earliest humans, people have attempted to understand the natural environment. We have observed our surroundings and searched for explanations for natural phenomena. Yet despite our persistence over ...
Jan 13, 2010 |
4.5 / 5 (2) |
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Researchers discover mechanism that helps humans see in bright and low light
Ever wonder how your eyes adjust during a blackout? When we go from light to near total darkness, cells in the retina must quickly adjust. Vision scientists at Washington University School of Medicine in St. ...
Medicine & Health / Neuroscience
Oct 13, 2009 |
4.9 / 5 (9) |
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Does Your Shift at Work Put You at a Greater Risk for Developing Cancer?
Does your shift at work put you at a greater risk for developing cancer?
Apr 03, 2009 |
3 / 5 (2) |
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New light shed on marine luminescence
The phenomenon of light emission by living organisms, bioluminescence, is quite common, especially in marine species. It is known that light is generated by chemical reactions in which oxygen molecules play ...
Biology /
Feb 23, 2009 |
5 / 5 (1) |
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Polarized light pollution leads animals astray
Human-made light sources can alter natural light cycles, causing animals that rely on light cues to make mistakes when moving through their environment. In the journal Frontiers in Ecology and the Environment, a coll ...
Jan 07, 2009 |
3.8 / 5 (4) |
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