News tagged with solar waves
Robotic boats to travel across Pacific Ocean
(PhysOrg.com) -- Last Thursday, November 17, four unmanned Wave Gliders left the coast of San Francisco and began a 300-day journey across the Pacific Ocean. The vehicles, which are self-propelled and remotely ...
Nov 21, 2011 |
4.7 / 5 (10) |
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Researchers adapt classic antennas to harness more power from the sun
Some solar devices, like calculators, only need a small panel of solar cells to function. But supplying enough power to meet all our daily needs would require enormous solar panels. And solar-powered energy collected by panels ...
Nov 10, 2011 |
4.1 / 5 (7) |
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Moon's shadow, like a ship, creates waves
During a solar eclipse, the Moon's passage overhead blocks out the majority of the Sun's light and casts a wide swath of the Earth into darkness. The land under the Moon's shadow receives less incoming energy ...
Space & Earth / Earth Sciences
Oct 05, 2011 |
4.6 / 5 (5) |
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'Oscar Madison' approach to solar cells may outshine 'Felix Unger' design
Sometimes neatness may not be necessary. Researchers have demonstrated that a tangled coating of randomly positioned nanowires can increase solar cell efficiency by absorbing more light.
Sep 12, 2011 |
5 / 5 (2) |
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Cheaper and cleaner electricity from wave-powered ships (w/ video)
(PhysOrg.com) -- At the Clean Technology 2011 Conference and Expo in Boston, Andre Sharon presented a new concept of using ships equipped with a wave-power system to harvest energy and deliver it back to a ...
Technology / Energy & Green Tech
Jul 20, 2011 |
4.6 / 5 (11) |
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Dark fireworks on the sun
On June 7, 2011, Earth-orbiting satellites detected a flash of X-rays coming from the western edge of the solar disk. Registering only "M" (for medium) on the Richter scale of solar flares, the blast at first appeared to ...
Space & Earth / Space Exploration
Jul 12, 2011 |
4.7 / 5 (7) |
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Nano-LEDs emit full visible spectrum of light
(PhysOrg.com) -- Physicists from Taiwan have designed and fabricated nano-sized light-emitting diodes (LEDs) that emit light spanning the entire visible spectrum. Although the tiny full-color LEDs aren't intended ...
Jun 17, 2011 |
4.9 / 5 (18) |
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Solar Dynamics Observatory detects superfast solar waves moving at 2,000 km/sec
(PhysOrg.com) -- Scientists using the Atmospheric Imaging Assembly (AIA) instrument on board NASA’s Solar Dynamics Observatory (SDO), have detected quasi-periodic waves in the low solar corona that travel ...
Space & Earth / Space Exploration
Jun 15, 2011 |
3.8 / 5 (4) |
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Solar Dynamics Observatory catches 'surfer' waves on the Sun (w/ video)
(PhysOrg.com) -- Cue the surfing music. Scientists have spotted the iconic surfer's wave rolling through the atmosphere of the sun. This makes for more than just a nice photo-op: the waves hold clues as to ...
Space & Earth / Space Exploration
Jun 07, 2011 |
5 / 5 (1) |
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Trapping a rainbow: Researchers slow broadband light waves with nanoplasmonic structures
A team of electrical engineers and chemists at Lehigh University have experimentally verified the "rainbow" trapping effect, demonstrating that plasmonic structures can slow down light waves over a broad range of wavelengths.
Mar 14, 2011 |
4.5 / 5 (2) |
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Solar Dynamics Observatory sundog mystery
]NASA's Solar Dynamics Observatory (SDO), best known for cutting-edge images of the sun, has made a discovery right here on Earth.
Space & Earth / Space Exploration
Feb 14, 2011 |
4.7 / 5 (7) |
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Cassini to probe Rhea for clues to Saturn rings
(PhysOrg.com) -- Saturn's icy moon Rhea might seem a strange place to look for clues to understanding the vast majestic rings encircling Saturn. But that's what NASA's Cassini spacecraft plans to do on its ...
Space & Earth / Space Exploration
Jan 11, 2011 |
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Global eruption rocks the sun
On August 1, 2010, an entire hemisphere of the sun erupted. Filaments of magnetism snapped and exploded, shock waves raced across the stellar surface, billion-ton clouds of hot gas billowed into space. Astronomers ...
Space & Earth / Space Exploration
Dec 14, 2010 |
5 / 5 (22) |
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Cluster helps disentangle turbulence in the solar wind
From Earth, the Sun looks like a calm, placid body that does little more than shine brightly while marching across the sky. Images from a bit closer, of course, show it's an unruly ball of hot gas that can ...
Space & Earth / Space Exploration
Oct 04, 2010 |
5 / 5 (6) |
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Distant star's sound waves reveal cycle similar to the Sun's
In a bid to unlock longstanding mysteries of the Sun, including the impacts on Earth of its 11-year cycle, an international team of scientists has successfully probed a distant star. By monitoring the star's ...
Aug 26, 2010 |
5 / 5 (10) |
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