News tagged with light energy

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Scientists control living cells with light; advances could enhance stem cells' power

Physics / Optics & Photonics

created Aug 11, 2009 | popularity 4.6 / 5 (5) | comments 0

University of Central Florida researchers have shown for the first time that light energy can gently guide and change the orientation of living cells within lab cultures. That ability to optically steer cells could be a major ...


LED Lamp with E27 Edison screw.

LED light bulbs yield big savings in energy

Technology / Energy

created Aug 13, 2009 | popularity 4.8 / 5 (20) | comments 42

One way the United States could slash its electricity use, dependence on fossil fuels and emissions of heat-trapping gases is really quite simple: better light bulbs.


High-intensity lights may help cut energy costs

Technology / Energy

created Jul 13, 2009 | popularity 4 / 5 (3) | comments 0

For the past 6 months, the Silver Creek Sportsplex in San Jose, Calif., has been testing ceiling lighting from a nearby startup that holds the promise of saving huge amounts of energy.


LED there be light

Technology / Hi Tech

created Jun 22, 2009 | popularity 4.2 / 5 (18) | comments 3

Q: How many LED engineers does it take to change a light bulb?


Scientists determine the structure of highly efficient light-harvesting molecules in green bacteria

Scientists determine the structure of highly efficient light-harvesting molecules in green bacteria

Biology / Biotechnology

created May 04, 2009 | popularity 5 / 5 (5) | comments 0

(PhysOrg.com) -- An international team of scientists has determined the structure of the chlorophyll molecules in green bacteria that are responsible for harvesting light energy. The team's results one day ...


Quantum calibration paves way for super-secure communication

Quantum calibration paves way for super-secure communication

Physics / General Physics

created Nov 17, 2008 | popularity 4.3 / 5 (11) | comments 2

(PhysOrg.com) -- A new approach to calibrating quantum mechanical measurement has been developed with particular applications in optics and super-secure quantum communication.


Gold Nanorods

Golden Nanorods for Medical Applications

Nanotechnology / Bio & Medicine

created Sep 08, 2008 | popularity 4.6 / 5 (14) | comments 0

(PhysOrg.com) -- Gold nanoparticles are under consideration for a number of biomedical applications, such as tumor treatment. A German-American research team at Carnegie Mellon University in Pittsburgh, Hunter ...