NANOGENERATORS, COAL-TO-DIESEL, ELECTRONS AS WAVES, etc.
Date: Friday, April 14, 2006 @ 15:52:55 GMT
NANOGENERATORS MAY SPARK MINIATURE MACHINES
(UPDATE), April 13
Researchers have developed a new technique for powering nanometer-scale devices
without the need for bulky energy sources such as batteries. By converting
mechanical energy from body movement, muscle stretching or water flow into
electricity, these "nanogenerators" could make possible a new class
of self-powered implantable medical devices, sensors and portable electronics.
Full story at http://www.physorg.com/news64157349.html
NUCLEAR PUTS RENEWABLE ENERGY AT RISK, April 14
A new report from Dr Catherine Mitchell and Dr Bridget Woodman of Warwick
Business School at the University of Warwick in the UK, examining the contribution
nuclear power could make to the UK's energy 'mix', says that if the UK
Government opts for new nuclear build, it risks becoming locked into expensive
technology that won't help reduce carbon emissions.
Full story at http://www.physorg.com/news64238337.html
COAL-TO-DIESEL BREAKTHROUGH COULD DRASTICALLY CUT OIL IMPORTS, April 13
Professor Alan Goldman and his Rutgers team in collaboration with researchers at the University of North Carolina at Chapel Hill have developed a way to convert carbon sources, such as coal to diesel fuel. This important advance could significantly cut America's dependence on foreign oil - what
President Bush called "an addiction" in his 2006 State of the Union
address. According to the U.S. Department of Energy, our 286 billion tons of
coal in the ground translate into energy reserves 40 times those of oil.
Full story at http://www.physorg.com/news64157533.html
GRAPHENE PROVIDES FOUNDATION FOR NEW DEVICES
THAT HANDLE ELECTRONS AS WAVES, April 14
A study of how electrons behave in circuitry made from ultrathin layers of
graphite - known as graphene - suggests the material could provide the
foundation for a new generation of nanometer scale devices that manipulate
electrons as waves - much like photonic systems control light waves.
Full story at http://www.physorg.com/news64239590.html
GENERALLY SPEAKING: A PRIMER ON GENERAL RELATIVITY, April 13
"The one sentence statement of general relativity is that 'gravity is the
curvature of spacetime,'" explains Dr. Sean Carroll, assistant professor
of physics at the University of Chicago. "Really, the differences come in
understanding what that sentence means."
Full story at http://www.physorg.com/news64168756.html
COULD REDUCING GLOBAL DIMMING MEAN A HOTTER, DRYER WORLD?, April 14
Despite concerns over global warming, scientists have discovered something that
may have actually limited the impact of greenhouse gases in the atmosphere in
recent years by reducing the amount of sunlight reaching the surface of the
Earth. So-called "global dimming," will be the focus of a NOVA
special scheduled to air on April 18 and featuring Lamont-Doherty researcher
Full story at http://www.physorg.com/news64244336.html
BRITON SAYS GLOBAL WARNING MAY UP HUNGER, April 14
Britain's top government scientist warns current global warming will raise
temperatures enough to put 400 million more people at risk of hunger.
Full story at http://www.physorg.com/news64238511.html