Semiconductor for splitting CO2 powered by sunlightKubiak and Sathrum initially used a silicon semiconductor to test the merits of their device because silicon is well-studied. However, silicon absorbs in the infrared range and the researchers say it is “too wimpy” to supply enough energy. The conversion of sunlight by silicon supplied about half of the …
More progress on making stronger materials. Stronger materials means existing products can have the same strength but be lighter. Light weight can mean greater fuel efficiency. With enough strength entirely new applications become possible, such as space elevators. Physorg.com brings word of carbon nanotube composites A team of University of Pennsylvania and Rice University researchers …
New anti-air pollutions bills that are going before congress. The Clean Air Planning Act would save thousands of lives each year. For instance, EPA estimated that the previous bill, when compared to “Clear Skies” in 2010, would mean 10,000 fewer premature deaths, 15,000 fewer trips to the emergency room and 1 million fewer work days …
An article that discusses various research and possibilities for extending maximum lifespan Optimal amounts of the amino acid methionine seems to be an important part of low calorie diets. A recent Spanish study found that methionine restriction definitely decreases oxidative damage to crucial mitochondrial DNA and proteins. Has any animal exploited the immortality of its …
Wimax will have about 20% of the next generation wireless communication market, Long Term Evolution (LTE), a follow-on to cellular’s GSM standard, will command the lion’s share of fourth-generation cellular systems. MacLeod said carriers Sprint Nextel, startup Clearwire and Russia’s Sistema have committed to WiMax, while Cingular and Vodafone are backing LTE. AT&T, BT and …
Researchers at the Centre for Material Development and Structural Studies in Toulouse (CEMES-CNRS) and their colleagues at the Free University of Berlin have, for the first time, managed to control the rotation of a wheel in a molecule. This nano-mechanical experiment concerned an 0.7 nm diameter wheel attached to a 0.6 nm-long axle. This success …
Skin cells genetically engineered to be resistant to bacteria could reduce infections and improve chances of survival among burn victims. A patient’s skin cells, genetically modified and grown in a test tube, could provide the next generation of artificial skin. As a first step in creating such replacement skin, scientists in Cincinnati have engineered bacteria-resistant …