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POPSSun + Water = Fuel Michael Grätzel, however, may have a clever way to turn Nocera's discovery to practical use. A professor of chemistry and chemical engineering at the École Polytechnique Fédérale in Lausanne, Switzerland, he was one of the first people Nocera told about his new catalyst. "He was so excited," Grätzel says. "He took me to a restaurant and bought a tremendously expensive bottle of wine." In 1991, Grätzel invented a promising new type of solar cell. It uses a dye containing ruthenium, which acts much like the chlorophyll in a plant, absorbing light and releasing electrons. In Grätzel's solar cell, however, the electrons don't set off a water-splitting reaction. Instead, they're collected by a film of titanium dioxide and directed through an external circuit, generating electricity. Grätzel now thinks that he can integrate his solar cell and Nocera's catalyst into a single device that captures the energy from sunlight and uses it to split water.
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POPSBack-to-School Season for Your Immune Cells In fact, "backpack" is a near-perfect analogy for this technology. The synthetic patch application consists of three layers of polyelectrolytes (certain types of polymers). Inside, the middle layer is whatever the scientists want the cell to be carrying: examples include a vaccine, a protein marker, or magnetic nanoparticles for controlled direction. The bottom layer of the patch is a polymer that attaches to the surface of the immune cell, and the top layer binds to other cells.
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POPSLG KP265 Unlocked The new GPRS & Bluetooth enabled slider phone,KP 265 is equipped with high-quality TFT display having a resolution of 128 x 160 that displays 262,000 colors.Apart from other cool features, the KP265 also comes with a pre-installed music player
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POPSMajority of Kids Are Computer Savvy An overwhelming majority (89%) of all kids age 6-11 in the US spend at least some time doing online activities and - though many of their basic social activities haven’t changed much over the years - they have vastly different communication styles and preferences than older age groups, according to a study from Experian Consumer Research.
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POPSNew Spin Record Set: 1 Million rpm The new motor could be applied for faster drills and more efficient and compact compressors for cars and airplanes. The trend towards increasingly smaller cell phones and other teensy electronic devices means ever smaller holes must be drilled to make them, and that requires higher rotational speeds, the researchers said. "Our findings will rapidly be converted into concrete applications and products," said Johann Kolar, one of the researchers involved in the feat.
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POPSSamsung E2510 Unlocked Samsung E2510 operates in four bands GSM, given the camera VGA, FM-tuner, music player supports a memory card, microSD. The phone has 15 MB internal memory, which can be expanded up to 2 GB, internal 1.9-inch TFT-display with a resolution 128h160.
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POPS'Supermice' who can resist cancer and age almost half as fast as normal In the latest study, published in the journal Cell, the scientists solved that problem by changing the genes of the mice first to make them resistant to the disease. The researchers found that mice which had been created in this way had better muscle in old age, healthier skin tissue and fewer digestion problems. "By simultaneously increasing the amounts of telomerase and the resistance to cancer we are able to delay ageing in mice and also to extend their life span by 40 per cent," said Maria A. Blasco, from the Spanish National Cancer Research Centre (CNIO), who carried out the study with colleagues from Valencia University. "These mice get to live for as long as the eldest mice in records of the same kind. "If we were to parallel it to humans, then it would mean reaching 120 years of age and also to start ageing much later in life."
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POPSGuide To Wireless Services The selection of the best cellular phone service is very difficult. Hence a guide to cellular phone wireless services is essential to find the best option.
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POPSNokia 6300 white US Version Unlocked Slim is in with Nokia’s no nonsense all in one phone. Offered at a budget price but packed full with all the features that you’ll find in higher end phones, this is new in the series 40 3rd edition line of mobiles. On staples of this line is the incredibly easy to use interface.
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POPSLCD Makers Admit To Price Fixing The price fixing occurred prior to the end of 2006 -- while it's impossible to say if anything similar is still happening, the price of LCD screens has fallen significantly since then.
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POPSSony Ericsson C905 James Bond Edition The C905 body is smooth and sleek with button layout intended to speed up the process of accessing applications. The slide mechanism has a dual-purpose. It reveals the powerful camera on the back and the keypad on the front.
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