News tagged with solar radiation

Sun emits fourth X-class flare in a week

The sun emitted a significant solar flare—its fourth X-class flare since Oct. 23, 2013—peaking at 5:54 p.m. on Oct. 29, 2013. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through ...

dateOct 30, 2013 in Space Exploration
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Natural deep-sea batteries

Exploring the deep oceans presents huge technical challenges, many of which could be overcome if there were some cheap and efficient way to deliver power to machines while at depth. To tackle this problem, a collaborative ...

dateOct 25, 2013 in Materials Science
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Twenty-two thousand trips around the planet

Four years after its launch, Swisscube, the small satellite developed by EPFL's Space Center, is still in operation. Some of the technological choices made and considered audacious at the time have yielded valuable lessons ...

dateOct 21, 2013 in Space Exploration
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A better way to calculate solar radiation

( —Research by Murdoch University, James Cook University and the University of Waterloo in Canada has revealed flaws in the way that the widely-used Ångström-Prescott equation links solar radiation to sunshine ...

dateOct 15, 2013 in Energy & Green Tech
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Sea-ice formation sustained the 'Little Ice Age'

Volcanic eruptions and reduced solar radiation caused global cooling between the thirteenth and the fifteenth centuries. The resulting accelerated formation of sea ice in the Northern Seas triggered a positive feedback process ...

dateSep 30, 2013 in Earth Sciences
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