California's goal of generating 33 percent of its power from renewable energy sources by 2020 will be challenging on days when clouds shade acres of solar photovoltaic panels or when thousands of wind turbines spin more slowly ...
Energy & Green Tech
Mar 16, 2010
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An international team of researchers from United Kingdom, Denmark, and Germany has found robust evidence for signatures of the 11-year sunspot cycle in the tropical Pacific. They analyzed historical time series of pressure, ...
Earth Sciences
Mar 29, 2019
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Scientists have taken a major step toward accurately determining the amount of energy that the sun provides to Earth, and how variations in that energy may contribute to climate change.
Earth Sciences
Jan 14, 2011
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(PhysOrg.com) -- During the Maunder Minimum, a period of diminished solar activity between 1645 and 1715, sunspots were rare on the face of the sun, sometimes disappearing entirely for months to years. At the same time, Earth ...
Space Exploration
Mar 23, 2009
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0
(PhysOrg.com) -- A scientist at the Argonne National Laboratory has created visible-light catalysis, using silver chloride nanowires decorated with gold nanoparticles, that may decompose organic molecules in polluted water.
Nanophysics
Jun 15, 2010
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Every 18 months or so, scientists and sensation-seekers gather at set points on Earth's surface, to await awe-inspiring solar eclipses. The Moon briefly blocks the Sun, revealing its mysterious outer atmosphere, the corona. ...
Space Exploration
Aug 22, 2016
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How much do solar cycle variations influence our climate system? Could rising Earth temperatures due to anthropogenic effects partly be compensated by a reduction of solar forcing in the future? These questions have been ...
Earth Sciences
Jul 3, 2017
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20
Sunspots have been observed for about four centuries, since they were first reported by Galileo. Appearing in roughly eleven-year cycles of activity, sunspots are regions of strong and complex magnetic fields which are also ...
Space Exploration
Apr 5, 2011
6
0
(PhysOrg.com) -- A new system from an Italian company uses weather satellite data to estimate the potential of solar cell power plants and monitor their performance. The approach helps to give a faster return on investments ...
Energy & Green Tech
Oct 16, 2009
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Space Exploration
May 12, 2022
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