
Swiss Federal Institute of Technologyscientists found that carbon nanotubes offer the potential to establish functional links between neurons that could fight disease and enhance our brains.

Swiss Federal Institute of Technologyscientists found that carbon nanotubes offer the potential to establish functional links between neurons that could fight disease and enhance our brains.

Multi-walled carbon nanotubes riddled with defects and impurities on the outside could replace some of the expensive platinum catalysts used in fuel cells and metal-air batteries, according to scientists at Stanford University. Their findings are published in the May 27 online edition of the journal Nature Nanotechnology.
“Platinum is very expensive and thus impractical for large-scale commercialization,” said Hongjie Dai, a professor of chemistry at Stanford and co-author of the study. “Developing a low-cost alternative has been a major research goal for several decades.”

When power plants begin capturing their carbon emissions to reduce greenhouse gases — and to most in the electric power industry, it’s a question of when, not if — it will be an expensive undertaking.

With thousands of acres of rich farmland, the Delta has a long agricultural legacy. But farming there can be a risky business. Dozens of farms have been flooded over the past half century as aging levees have collapsed.
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The phenomenon is familiar: if you run an electric current through a wire, the wire heats up. Known as “Joule heating” (for James Joule, the physicist-brewer who quantified it in the 19th century), the cause is usually very simple: the electrons carrying the current transfer some of their energy to the atoms in the wire, and the increased vibration of the atoms is measured as a rise in temperature. While it’s very useful in some applications, Joule heating can often be a problem, especially in electronic devices like computer processors, where excess thermal energy can cook the chips.
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Two independent teams have made ultrathin, cabon-based membranes with extraordinary properties that could be used in a range of applications, from water filtration to petroleum processing. One team, based at the University of Manchester in the UK, has made membrane from graphene oxided that appears to be highly permeable to water while being impermeable to all other liquids and gases. The other group, at Japan’s National Institute for Materials Science, has made membranes from diamond-like carbon (DLC) that are highly permeable to certain organic solvents, but not others.
Space elevators are incredibly tall theoretical structures that stretch beyond the earth’s atmosphere to transport satellites and shuttles into outer space without the cost and environmental impact of rocket fueled launches. The idea has always been more science fiction than science fact, however a team from King’s College London could change that — they claim that advances in carbon nanotubes could make it ‘theoretically’ possible create a tether that would be strong enough to stretch more than 22,000 miles into space.
rbon nanotubes — those tiny particles poised to revolutionize electronics, medicine, and other areas — are much bigger in the strength department than anyone ever thought, scientists are reporting. New studies on the strength of these submicroscopic cylinders of carbon indicate that on an ounce-for-ounce basis they are at least 117 times stronger than steel and 30 times stronger than Kevlar, the material used in bulletproof vests and other products.