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Monthly Archives: May 2011

Fast Charge Lithium Battery

Written by , on May 31, 2011

A research team led by Dr Amy Prieto has developed a new type of lithium-ion battery that features a 3-D interior structure. The new battery is able to recharge in just a few minutes, can be discharged over twice as many times as traditional lithium-ion batteries and is thinner and lighter than existing lithium batteries. […]  Read more »

Omni-directional Wind Turbine for Rooftops

Written by , on May 26, 2011

Katru Eco-Energy has developed a new kind of wind turbine which it claims can capture the winds from all directions on top of big buildings without having to be repositioned or pointed. The Implux achieves this by means of horizontal turbine blades that sit on top of a vertical axis and are turned by wind […]  Read more »

More Efficient Wind Turbines

Written by , on May 24, 2011

Scientists at the Technische Universitaet in Munich have been able to increase the efficiency of wind turbines by adapting a technology called torque vectoring, used in some four-wheel drive vehicles. In current wind turbines, the rotational speed of the turbine changes depending on the force of the wind. Therefore the freqency of the current produced by […]  Read more »

Nano-composite Magnets Could Help in Rare-Earth Shortage

Written by , on May 20, 2011

Today’s best magnets use rare-earth metals, whose supply is becoming unreliable even as demand grows. The strongest magnets rely on an alloy of the rare-earth metal neodymium with iron and boron. Magnet makers sometimes add other rare-earth metals, including dysprosium and terbium, to these magnets to improve their properties. Researchers are now seeking to make […]  Read more »

Solar Rubbish Dumps

Written by , on May 19, 2011

African Renewable Energies, a small London–based firm, aims to help poor communities in developing countries earn money and generate electricity from the innumerable rubbish tips around African cities. The idea is to cover landfill sites with thinfilm solar phovololtaic cells printed on to the flexible membranes used to cap landfills. Landfills in Africa are often […]  Read more »

Unmanned Pollution-collecting Drones

Written by , on May 18, 2011

Protei is a fleet of pollution collecting sailing drones which use existing technologies in an innovative, low-cost open-source oil collecting devices that semi-autonomously sails upwind, intercepting oil sheens which are going downwind. The design of protei is intended to be hurricane-ready, self-righting, inflatable, unbreakable, cheap and easy to manufacture for immediate response. The machine currently […]  Read more »

Genetic Discovery Could Make Growing Biomass More Productive

Written by , on May 17, 2011

Researchers at the Samuel Roberts Noble Foundation in Oklahoma have reported a genetic discovery that allows individual plants to produce more biomass. This means that biofuel crops could have higher yields without increasing their agricultural footprint. Dr Huanzhong Wang has discovered a gene that controls the production of lignin within the stems of arabidopsis and […]  Read more »

Printed Battery Could Store 40% More

Written by , on May 15, 2011

Xerox’s Palo Alto Research Center has developed a new manufacturing process developed that is claimed to increase the energy a lithium-ion battery can store by 40%. The technology is similar to that of printed solar cells. In lithium-ion batteries, the electrodes serve as either anodes or cathodes – which makes the battery rechargeable. With current […]  Read more »

Open Source “Civilization Starter Kit”

Written by , on May 15, 2011

Realizing that the appropriate, low-cost tools for affordable, sustainable farming and settlement didn’t exist, Marcin Jakubowski decided to build them. The idea was to create an easily repairable, modular and scalable set of tools providing everything you need to build, or rebuild, civilization. The result was a group called Open Source Ecolody, and an open […]  Read more »

New Research Estimates Larger Sea Level Rise

Written by , on May 9, 2011

In 2007, the IPCC projected a maximum sea level rise of 59 centimetres by 2100. The IPCC acknowledged that this was likely to be an under-estimate because understanding of the processes happening on ice sheets was inadequate to enable reliable estimates to be made. A team of researchers led by Eric Rignot from Nasa’s Jet […]  Read more »