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Making fuel from light

04-Sep-2015

Refined by nature over a billion years, photosynthesis has given life to the planet, providing an environment suitable for the smallest, most primitive organism all the way to our own species. While scientists have been studying and mimicking the natural phenomenon in the laboratory for years, ...

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For 2-D boron, it's all about that base

Theorists show flat boron form would depend on metal substrates

04-Sep-2015

Scientists have theoretically determined that the properties of atom-thick sheets of boron depend on where those atoms land. Calculation of the atom-by-atom energies involved in creating a sheet of boron revealed that the metal substrate - the surface upon which two-dimensional materials are ...

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CT scan of Earth links deep mantle plumes with volcanic hotspots

Scans prove that plumes of hot rock anchored at core-mantle boundary rise to form island chains

04-Sep-2015

Seismologists have produced for the first time a sharp, three-dimensional scan of Earth's interior that conclusively connects plumes of hot rock rising through the mantle with surface hotspots that generate volcanic island chains like Hawaii, Samoa and Iceland. Essentially a computed tomography, ...

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Radioactive contaminants found in coal ash

04-Sep-2015

A new Duke University-led study has revealed the presence of radioactive contaminants in coal ash from all three major U.S. coal-producing basins. The study found that levels of radioactivity in the ash were up to five times higher than in normal soil, and up to 10 times higher than in the parent ...

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Made from solar concentrate

Solar cell absorbs high-energy light at 30-fold higher concentration than conventional cells

03-Sep-2015

By combining designer quantum dot light-emitters with spectrally matched photonic mirrors, a team of scientists with the Lawrence Berkeley National Laboratory and the University of Illinois created solar cells that collect blue photons with the highest luminescent concentration factor ever ...

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Distant planet's interior chemistry may differ from our own

03-Sep-2015

As astronomers continue finding new rocky planets around distant stars, high-pressure physicists are considering what the interiors of those planets might be like and how their chemistry could differ from that found on Earth. New work from a team including three Carnegie scientists demonstrates ...

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Tiny drops of early universe 'perfect' fluid

Results from collisions of 3-particle ions with gold nuclei reveal evidence of primordial soup's signature particle flow

03-Sep-2015

The Relativistic Heavy Ion Collider (RHIC), a particle collider for nuclear physics research at Brookhaven National Laboratory, smashes large nuclei together at close to the speed of light to recreate the primordial soup of fundamental particles that existed in the very early universe. ...

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Team harnesses intense X-ray beam, observes unusual phenomenon for the first time

02-Sep-2015

Using an enormous X-ray laser - one of only two such machines on Earth - University of Nebraska-Lincoln physicist Matthias Fuchs and scientists from around the world beat formidable odds to observe one of the most fundamental interactions between X-rays and matter. The findings can aid future ...

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Nothing but water: Hydrogen fuel cell unit to provide renewable power to Honolulu port

02-Sep-2015

A new chapter in clean energy is starting in Hawaii. At Young Brothers Ltd.'s Port of Honolulu facility, Sandia National Laboratories is leading the Maritime Hydrogen Fuel Cell project to test a hydrogen-fuel-cell-powered generator as an alternative to conventional diesel generators. The project ...

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An engineered surface unsticks sticky water droplets

02-Sep-2015

The leaves of the lotus flower have been the model for many types of engineered liquid-repelling surfaces. As slippery as these surfaces are, however, tiny water droplets still stick to them. Now, Penn State researchers have developed nano/micro-textured, highly slippery surfaces able to ...

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