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Tag: Solar

UK to build record-breaking solar planes

UK to build record-breaking solar planes

Science
A solar plane which can stay aloft for weeks at a time is to be manufactured by Airbus in the UK.The unmanned craft flies high in the atmosphere to avoid commercial air traffic and adverse weather.Known as the Zephyr, its remote-sensing potential has already seen the UK MoD invest, but Airbus also hope to develop the craft as a communications platform.The Zephyr will now begin industrial production in Farnborough, after several years of testing.Named for the Zephyr's late inventor, the newly opened Kelleher facility has the capacity to produce up to 30 of the planes each year.Its inauguration was announced at the 2018 Farnborough Air Show. Powered by solar energy during the day, and solar-charged...
New nanoparticle could help solar panels convert unseen light into energy

New nanoparticle could help solar panels convert unseen light into energy

Science
April 23 (UPI) -- Scientists have developed a new nanoparticle that can absorb near-infrared light and reemit it as visible light, which could allow solar panels to convert unseen light into usable energy.Researchers at the U.S. Department of Energy's Lawrence Berkeley National Laboratory coated tiny particles in organic dyes. The dyes work like antennae, which allowed scientists to fine-tune the nanoparticle's light-converting properties."These organic dyes capture broad swaths of near-infrared light," Bruce Cohen, a scientist at Berkeley Lab's Molecular Foundry, said in a news release.Most solar technologies that focus on visible light fail to absorb near-infrared light, allowing a solid chunk of the solar spectrum to go to waste. Roughly 44 percent of all light that hits Earth's surface...
Secrets of solar flares are unlocked

Secrets of solar flares are unlocked

Science
Scientists may finally understand the mechanism behind solar flares.Flares can occur on their own, or be accompanied by powerful eruptions of plasma (charged gas) from the Sun.If charged particles from these eruptions reach Earth, they can create havoc with infrastructure, such as satellite systems and power grids.Now, researchers in France say the interaction of distinct magnetic structures controls these outbursts from our star.Generally speaking, solar eruptions are caused by a sudden, violent rearrangement of the Sun's magnetic field.At a deeper level, the process is controlled by two types of structures that form in the magnetic field of the Sun: ropes and cages.The rope is confined within the magnetic cage. If the cage is strong, it can contain the rope's contortions, but when the ca...
Astronomers may have found solar system's first observed interstellar object

Astronomers may have found solar system's first observed interstellar object

Science
Oct. 28 (UPI) -- Astronomers are tracking what they believe may be the first observed interstellar asteroid or comet to travel through Earth's solar system, NASA said.The space agency said the object is less than a quarter mile in diameter and is traveling "remarkably fast." They're not sure what exactly it is.Paul Chodas, manager of NASA's Center for Near-Earth Object Studies, said the agency has been "waiting for this day for decades.""It's long been theorized that such objects exist -- asteroids or comets moving around between the stars and occasionally passing through our solar system -- but this is the first such detection. So far, everything indicates this is likely an interstellar object, but more data would help to confirm it," he added.The University of Hawaii's Pan-STARRS 1 teles...
Drones, solar and apps: It's not your father's sector rotation anymore

Drones, solar and apps: It's not your father's sector rotation anymore

Finance
Many individual investors fail to manage their equity portfolios with an awareness of "sector rotation" — ups and downs in different sectors' performance, stemming from changing economic conditions and inevitable shifts in market favor.Historically, determining which sectors were likely to do well at a given time was basically a function of the economy. Different sectors tended to perform well at different points in the economic growth cycle, from recession to expansion and then back down again, affected variously by such factors as commodity prices, the broad state of corporate earnings, interest-rate shifts and consumer confidence.Some of this wisdom may still apply, but things are much different now, especially regarding consumer sectors. As relentless technological advances change cons