News tagged with solar waves

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 ...

Nanotechnology / Nanophysics

created Jun 17, 2011 | popularity 4.9 / 5 (18) | comments 2 | with audio podcast feature

Folding light: Wrinkles and twists boost power from solar panels

Taking their cue from the humble leaf, researchers have used microscopic folds on the surface of photovoltaic material to significantly increase the power output of flexible, low-cost solar cells.

Physics / Optics & Photonics

created Apr 27, 2012 | popularity 4.9 / 5 (15) | comments 8 | with audio podcast

Space weather expert has ominous forecast

A stream of highly charged particles from the sun is headed straight toward Earth, threatening to plunge cities around the world into darkness and bring the global economy screeching to a halt.

Space & Earth / Space Exploration

created May 08, 2012 | popularity 4.3 / 5 (9) | comments 7

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.

Physics / Optics & Photonics

created Mar 14, 2011 | popularity 4.5 / 5 (2) | comments 1 | with audio podcast

Monster Waves on the Sun are Real (w/ Video)

Sometimes you really can believe your eyes. That's what NASA's STEREO (Solar Terrestrial Relations Observatory) spacecraft are telling researchers about a controversial phenomenon on the sun known as the "solar ...

Space & Earth / Astronomy

created Nov 25, 2009 | popularity 4.9 / 5 (21) | comments 2

Shocking recipe for making killer electrons (w/ Video)

Take a bunch of fast-moving electrons, place them in orbit and then hit them with the shock waves from a solar storm. What do you get? Killer electrons. That's the shocking recipe revealed by ESA's Cluster ...

Space & Earth / Space Exploration

created Mar 11, 2010 | popularity 4.5 / 5 (8) | comments 9 | with audio podcast

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

created Oct 05, 2011 | popularity 4.6 / 5 (5) | comments 3 | with audio podcast

Precise Radio-Telescope Measurements Advance Frontier Gravitational Physics

(PhysOrg.com) -- Scientists using a continent-wide array of radio telescopes have made an extremely precise measurement of the curvature of space caused by the Sun's gravity, and their technique promises a ...

Physics / General Physics

created Sep 01, 2009 | popularity 4.5 / 5 (12) | comments 7

Scientists find giant solar twists

(PhysOrg.com) -- Scientists have, for the first time, detected giant twisting waves in the lower atmosphere of the Sun, shedding light on the mystery of the Sun's corona (the region around the Sun, extending ...

Space & Earth / Astronomy

created Mar 19, 2009 | popularity 4.6 / 5 (10) | comments 0

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

created Jul 20, 2011 | popularity 4.6 / 5 (11) | comments 35 | with audio podcast report

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 ...

Electronics / Robotics

created Nov 21, 2011 | popularity 4.7 / 5 (10) | comments 3 | with audio podcast weblog

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

created Jun 07, 2011 | popularity 5 / 5 (1) | comments 2 | with audio podcast

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

created Jul 12, 2011 | popularity 4.7 / 5 (7) | comments 12 | with audio podcast

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 ...

Physics / General Physics

created Nov 10, 2011 | popularity 4.1 / 5 (7) | comments 0 | with audio podcast

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

created Feb 14, 2011 | popularity 4.7 / 5 (7) | comments 1 | with audio podcast