Energy News

NIST Demonstrates Significant Improvement in the Performance of Solar-Powered Hydrogen Generation
Wednesday, May 15, 2013 - 14:04

Using a powerful combination of microanalytic techniques that simultaneously image photoelectric current and chemical reaction rates across a surface on a micrometer scale, researchers at the National Institute of Standards and Technology (NIST) have shed new light on what may become a cost-effective way to generate hydrogen gas directly from water and sunlight.

 

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Making frequency-hopping radios practical
Wednesday, May 15, 2013 - 10:34

The way in which radio spectrum is currently allocated to different wireless technologies can lead to gross inefficiencies. In some regions, for instance, the frequencies used by cellphones can be desperately congested, while large swaths of the broadcast-television spectrum stand idle.

 

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Solar panels as inexpensive as paint?
Monday, May 13, 2013 - 10:46

Most Americans want the U.S. to place more emphasis on developing solar power, recent polls suggest. A major impediment, however, is the cost to manufacture, install and maintain solar panels. Simply put, most people and businesses cannot afford to place them on their rooftops.

 

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Photonic quantum computers: a brighter future than ever
Monday, May 13, 2013 - 09:38

Harnessing the unique features of the quantum world promises a dramatic speed-up in information processing as compared to the fastest classical machines. Scientists from the Group of Philip Walther from the Faculty of Physics, University of Vienna succeeded in prototyping a new and highly resource efficient model of a quantum computer – the boson sampling computer. The results will be published in the upcoming issue of the renowned scientific journal "Nature Photonics".

 

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Elucidating energy shifts in optical tweezers
Wednesday, May 8, 2013 - 09:57

Physicists are providing an all-in-one guide to help calculate the effect the use of optical tweezers has on the energy levels of atoms under study.

 

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Observations of the most massive neutron star confirm Einstein's Relativity Theory
Friday, April 26, 2013 - 09:05

An international research team led by astronomers from the Max Planck Institute for Radio Astronomy) used a collection of large radio and optical telescopes in Bonn to investigated in detail a pulsar and its white dwarf companion. The observations revealed a binary stellar system with unusual properties. The pulsar weighs twice as much as the sun, making it the most massive neutron star measure to date. This, in combination with its short orbital period of only 2.5 hours, provides new insights into the emission of gravitational radiation. The system thus serves as a laboratory for General Relativity in extreme conditions.

 

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