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Eco Tech: Peridotite Rocks can convert CO2 to marble and limestone
Eco Factor: Rocks found 20 kilometers under the surface of Earth can be tapped to capture and store vast amounts of CO2.The increase in the levels of CO2 in the recent decades has not only made the planet warmer, but has also increased the heat in the minds...
2008-11-08 01:07:13
Eazo is back with the F20-SE Xing Crystal Series computer
Chinas custom PC luxury brand Eazo is back with a bang. They have now launched the new F20-SE Xing Crystal Series computer encrusted with crystallized Swarovski elements. The whole computer has been adorned with sparkling crystals, be it the keyboard or the wireless mouse. The innards feature an Intel Core 2 Quad Q9450 processor and WD Green Power 1TB eco-friendly hard drive. They are offering three unique models in the F20-SE Xing Crystal Series - the F20-SE Starry Night Star, F20-SE Pink Lady and the F20-SE Royal White. The buyers can even customize the F20-SE computer with their own crystal signatures. The Eazo PCs tout magnesium alloy chassis, which is further painted with natural Chinese lacquer with no chemical additives. No word on pricing, but we know that a custom configured dream system from Eazo could cost you around $70,000. Via: BearEyes
2008-11-07 04:00:25
New hydrogen-absorbing metal alloy sixty percent lighter than battery
Amsterdam, Nov 5 ANI: A researcher has shown that that an alloy of the metals magnesium, titanium and nickel is excellent at absorbing hydrogen, and is sixty percent less than a battery pack, which brings the world a step closer to the everyday use of hydrogen as a source of fuel for powering vehicles. The researcher in question is Robin Gremaud, who was sponsored by the Netherlands Organisation for Scientific Research NWO.In order to find the best alloy, Gremaud developed a method that enabled simultaneous testing of thousands of samples of different metals for their capacity to absorb hydrogen, which led to the creation of the new alloy.Hydrogen is considered to be a clean and therefore important fuel of the future. But, the major problem of using hydrogen in transport is the secure storage of this highly explosive gas. This can be realised by using metals that absorb the gas. However, a drawback of this approach is that it makes the hydrogen 'tanks' somewhat cumbersome, a fact already observed in the battery, which is the competing form of storage for electrical energy. or example, driving four hundred kilometres with an electric car, such as the Toyota Prius, would require the car to carry 317 kilos of modern lithium batteries for its journey. But, with Gremaud's light metal alloy, this same distance would require a hydrogen tank of 'only' two hundred kilos. In his research, Gremaud made use of a technique for measuring the absorbance of hydrogen by metals, based on the phenomenon of 'switchable mirrors' discovered at the VU University Amsterdam. About ten years ago, researchers at the VU discovered that certain materials lose their reflection by absorbing hydrogen. This technique became known as hydrogenography, or 'writing with hydrogen'. Using this technique, Gremaud was able to simultaneously analyze the efficacy of thousands of different combinations of the metals magnesium, titanium and nickel. Traditional methods require separate testing for each alloy. The analysis requires each of the three metals to be eroded from an individual source and deposited onto a transparent film in a thin layer of 100 nanometres using so-called sputtering deposition. This ensures that the three metals are deposited onto the film in many different ratios. When the film is exposed to different amounts of hydrogen, it is clearly visible, even to the naked eye, which composition of metals is best at absorbing hydrogen. Gremaud is the first to use this method for measuring hydrogen absorption. The British company Ilika in Southampton wants to build a hydrogen analyzer using this technique. ANI
2008-11-05 04:00:27
Indian spacecraft will try to unravel moon's origins
NAT4National/ScienceIndian spacecraft will try to unravel moon's originsBy Fakir BalajiSriharikota Andhra Pradesh, Oct 16 IANS India's lunar explorer, Chandrayaan-1, will try to unravel the moon's origins as it scouts for minerals and water there, according to project director M. Annadurai.When Chandrayaan is launched Oct 22 from the Satish Dhawan Space Centre here, about 80 km from Chennai, it will boost international space cooperation by carrying 11 scientific devices, six of them from European and American organisations, to study the earth's nearest celestial neighbour while it orbits 100 km above the moon.One of the lunar orbiter's key missions will be to map the moon. "During the two-year expedition, the 11 devices will be used to prepare a three-dimensional atlas of both near and far side of the moon," Annadurai told IANS. The maps will have a high resolution of 5 to 10 metres, he added.Annadurai said the chemical and mineralogical mapping of the entire lunar surface will show where elements such as magnesium, aluminium, silicon, calcium, iron and titanium are to be found."Simultaneous photo, geological and chemical mapping will enable indentification of the different geological units, which will test the early evolutionary history of the moon," he said. They will also help determine the nature of the lunar crust, he said.The lunar probe will also look for water-ice in the permanently dark polar regions of the moon which may be as cold as 50 to 70 degrees Kelvin about minus 223 to minus 203 degrees Centigrade , he said.These are the European Space Agency devices or payloads that will fly on the Chandrayaan:-- Imaging x-ray spectrometer C1XS, developed by the Rutherford Appleton Laboratory in Britain with the ISRO satellite centre, will map the lunar surface, using x-ray fluorescence technique for measuring the elements. It will also observe the moon during the rising phase of the solar cycle when x-ray signals are expected to be enhanced.-- Sub-kiloelectronvolt keV atom reflecting analyser SARA, built jointly by the Swedish Institute of Space Physics and the Space Physics Laboratory of the Vikram Sarabhai Space Centre VKSC at Thiruvananthapuram, will study the composition of the moon, the way its surface reacts to solar wind, how its materials change and the magnetic anomalies.The following are the two US instruments packages:--The 6.5-kg mini synthetic aperture radar MiniSAR, developed by the Johns Hopkins University applied physics laboratory and the naval air warfare centre, will detect water-ice in the permanently shadowed regions of the lunar poles by digging a few metres into the surface.-- Moon mineralogy mapper M3, an imaging spectrometer built by Brown University and the Jet Propulsion Laboratory JPL of NASA, will assess and map lunar mineral resources at high spatial and spectral resolution for future targeted missions."The seven kg M3 will also help in characterising and mapping lunar minerals for knowing the moon's early geological evolution," Annadurai said. "Its compositional maps will improve our understanding of the early evolution of a differentiated planetary body and provide a high-resolution assessment of lunar resources."The Bulgarian Academy of Sciences' radiation dose monitor RADOM will characterise the radiation environment in a region of space near the moon. Its data will be used to evaluate the radiation environment and radiation shielding requirements on future manned moon missions.The five Indian payloads are:--The seven-kg terrain mapping camera TMC will map moon's topography and prepare the three-dimensional atlas.--The four-kg hyper spectral imager HySI will gather spectroscopic data for mapping minerals.--The 10-kg lunar laser ranging instrument LLRI will provide data for determining the height of lunar surface features and moon's gravity field.-- The 16-kg high energy x-ray spectrometer HEX will explore the moon's polar regions north-south that may be covered by thick water-ice deposits.-- The 29-kg moon impact probe MIP that will descend on to the lunar surface in about 20 minutes from an altitude of 100 km on a specific location at a pre-determined time to explore the moon from a close range.--Indo-Asian News Servicefb/arul/jg717 Words**16100946
2008-10-16 00:05:06
Fuel fear over stolen chemicals
Police believe thieves who stole a highly flammable tanker of a magnesium compound may mistake the chemical for fuel.
2008-09-25 03:00:00

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Eco Tech: Peridotite Rocks can convert CO2 to marble and limestone

Eazo is back with the F20-SE Xing Crystal Series computer

New hydrogen-absorbing metal alloy sixty percent lighter than battery

Indian spacecraft will try to unravel moon's origins

Fuel fear over stolen chemicals