The key to understanding Earth's evolution is to look at how heat is conducted in the deep lower mantle—a region some 400 to 1,800 miles (660 to 2,900 kilometers) below the surface. Researchers at the Carnegie Institution, ...
Earth Sciences
Aug 9, 2013
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In 2030, if all energy is converted to clean energy, humans will consume about eleven-and-a-half terawatts of power every year, all sources combined. If there is to be a clean-energy economy based on renewable energy, wind ...
Energy & Green Tech
Sep 10, 2012
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(Phys.org) -- Fifteen years of work by the Lawrence Livermore National Laboratory's National Ignition Facility (NIF) team paid off on July 5 with a historic record-breaking laser shot. The NIF laser system of 192 beams delivered ...
Optics & Photonics
Jul 12, 2012
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Producing a laser with a power of a terawatt -- equal to one trillion watts -- used to be impressive, but now the forefront of optical research power is measured in 1 quadrillion-watt units known as petawatts. But even that ...
General Physics
Jan 25, 2010
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Most of the technology needed to shift the world from fossil fuel to clean, renewable energy already exists. Implementing that technology requires overcoming obstacles in planning and politics, but doing so could result in ...
Energy & Green Tech
Oct 19, 2009
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