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Adding up renewable energy
Do the overall efficiencies of renewable energy sources, such as wind, solar, and geothermal add up in terms of their complete life cycle from materials sourcing, manufacture, running, and decommissioning" Researchers in Greece have carried out a life cycle assessment to find the answer. view more (2007-08-14)
ESA chairs the International Living With a Star programme
ESA is providing the first chairman for the International Living With A Star (ILWS) programme. ILWS is an unprecedented initiative in which space agencies worldwide are getting together to investigate how variations in the Sun affect the environment of Earth and the other planets, in the short and long term. In particular, ILWS will concentrate... view more... (2003-02-21)
Martian rock arrangement not alien handiwork
At first, figuring out how pebble-sized rocks organize themselves in evenly-spaced patterns in sand seemed simple and even intuitive. But once Andrew Leier, an assistant geoscience professor at the U of C, started observing, he discovered that the most commonly held notions did not apply. view more (2009-01-08)
A change in the wind
Climate model simulations for the 21st century indicate a robust increase in wind shear in the tropical Atlantic due to global warming, which may inhibit hurricane development and intensification. view more (2007-04-18)
Winds of 320 000 kilometres per hour on the Sun
The SUMER instrument on the ESA-NASA SOHO spacecraft has measured amazing wind speeds during its observations of the Sun. It sets a new record in its examination of two loops of gas arching in the solar atmosphere, where NASA`s TRACE satellite spotted bright blobs of gas. Shifts in the wavelength of ultraviolet light from highly ionized neon... view more... (2002-05-17)
Optimising the control of wind generators by means of intelligent microsensors
The School of Engineering at Bayonne (ESTIA) is working on a research project on control optimisation for the latest-generation wind generators using intelligent microsensors. view more (2006-04-25)
Signs of ideal surfing conditions spotted in ocean of solar wind
Researchers at the University of Warwick have found what could be the signal of ideal wave "surfing" conditions for individual particles within the massive turbulent ocean of the solar wind. view more (2009-08-31)
More safety for cell phone batteries
Fraunhofer researchers will be presenting a novel lithium-ion battery at Hannover Messe on April 21 - 25. It is based on a polymer electrolyte, which is - unlike the liquid electrolyte in conventional lithium-ion batteries - not inflammable. A test set-up for redox flow batteries will also be on display at the show. view more (2008-04-14)
Sandia-developed device determines how well wind turbines operate
In West Texas, New Mexico, and other places around the world, wind turbines are used to generate electricity. But how can engineers determine their efficiency and health? view more (2006-07-27)
Report examines limits of national power grid simulations
America's power grid today resembles the country's canal system of the 19th Century. A marvel of engineering for its time, the canal system eventually could not keep pace with the growing demands of transcontinental transportation. view more (2009-05-08)
Jupiter`s Electric Aurora
The planet Jupiter has spectacular rings of auroras around each pole but until now scientists have not been able to explain how they form. All auroras are caused by energetic charged particles crashing into the top of the atmosphere and making it glow. In the Earth's auroras, these particles come from the Sun in a flow of charged particles known... view more... (2002-03-26)
NIST evaluates firefighting tactics in NYC high-rise test
National Institute of Standards and Technology (NIST) fire protection engineers turned an abandoned New York City (NYC) brick high-rise into a seven-story fire laboratory last month to better understand the fast-moving spread of wind-driven flames, smoke and toxic gases through corridors and stairways of burning buildings. view more (2008-03-19)
Ethnic discrimination not only based on prejudice
Our belief in power hierarchies is important in how we view and treat people. This is shown in a dissertation by Alexandra Snellman from Uppsala University that examines how racist and sexist prejudice creates social hierarchies and ethnic discrimination in various situations. view more (2007-12-05)
Swells Neutralised During Offshore Maintenance
In future, the maintenance of, for example, wind turbines at sea, will be made easier and safer by a Delft invention, the 'Ampelmann', which compensated for swells at sea. Tests with scale models have shown that by mounting the working platform of maintenance ships on an Ampelmann, the platform will remain still and work can take place more... view more... (2005-02-16)
Chance encounter with comet nets surprising results
Comets are made of the most primitive stuff in the solar system. As hunks of rock and ice that never coalesced into more planets, they give researchers clues to the evolution of solar systems. view more (2007-10-02)
Clues To Supernova Origin Found In Dusty Stellar Wind
Scientists from Imperial College London have detected a dusty wind emitted by a star that, at the end of its life, turned into a white dwarf and then exploded as a supernova. This is the first time that a wind from this type of supernova precursor has been observed and it is also the first time that associated dust has been detected. The... view more... (2005-03-30)
Computer simulation predicts Voyager 2 will reach major milestone in space in late 2007-early 2008
Using a computer model simulation, Haruichi Washimi, a physicist at UC Riverside, has predicted when the interplanetary spacecraft Voyager 2 will cross the "termination shock," the spherical shell around the solar system that marks where the solar wind slows down to subsonic speed. view more (2007-11-28)
MSU professor creates one of nation's largest databases for wind energy research
In a little lab on the campus of Montana State University, John Mandell, Dan Samborsky, and scores of students, have been breaking things to advance the field of wind energy. view more (2006-08-14)
Is our heritage no longer crumbling? Weathering rates of St. Paul’s Cathedral London have halved in the last ten years in line with cleaner air.
SUMMARY: Measurements of the rates of weathering on St. Paul’s Cathedral, London have halved in the last ten years (1990 - 2000) as compared with the previous ten years (1980 - 1990). Yearly averages of sulphur dioxide concentrations in the air decreased from around 25 parts per billion (ppb) in the early 1980’s to... view more... (2000-08-30)
Fruit flies' response to wind offers new window to neural circuits
Try this at home: If fruit flies are buzzing around your kitchen, switch on your hairdryer and aim it at the flies. A gentle stream of air will stop them in their tracks, putting them in prime position for swatting. view more (2009-03-18)
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