The Independent out of the UK, has an article concerning the world's greatest green inventions. Some highlights:
THE ECO KETTLE
It is estimated that, on average, we boil twice the volume of water needed every time we use our kettles. With a 3kW kettle that's the same as wasting the energy of around 50 light bulbs. And standard kettles are often highly inefficient - a stove-top kettle, for instance, requires energy to heat the handle and shell in addition to the water. But British designer Brian Hartley's Eco Kettle solves....
www.ecokettle.com
GREEN ROOFS
Cities may be losing their green spaces to development, but all is not lost. Look up to the roofs of buildings, especially office blocks, and there, where once there was dead space, you could now find a "sky garden" (Barclays' HQ in Canary Wharf, London, has one). They could be used as community spaces, chill-out areas for hassled workers, or even to grow food....
www.greenroofs.com
FRICTIONLESS WIND TURBINES
The problem with wind turbines? Often, it's just not windy enough to get them turning. It's not really the lack of wind that is the problem, but the friction in the turbines themselves. Chinese scientists may have cracked this problem with the first "magnetic levitation" (or MagLev) wind turbines, which replace ball-bearings with the technology used in advanced monorails, making a frictionless turbine that can generate electricity from winds as low as 1.5m per second. They're ideal for low wind areas, such as mountain regions and small islands. The MagLev wind turbines could also use the airflow caused by passing cars to generate roadside lighting.
SOLAR-POWERED CELLPHONES
Germany's Fraunhofer Institute, an alliance of 50 technology research organisations, is looking at how to integrate solar cells into mobile phones, allowing them to be powered continuously on just two hours of sunlight a day. The big manufacturers are interested, as the more software that's packed into mobiles, the bigger batteries they need.
www.fraunhofer.de
ICE ENERGY
Air conditioning can be a huge drain on electricity supplies. Enter Ice Energy's Ice Bear, which integrates with a standard AC unit. The water in the Ice Bear is frozen overnight when temperatures are lower and electricity, in many countries, is cheaper, and the ice then cools the AC unit's refridgerant during the day. This results in a 30 per cent saving in energy use. An AC unit should last 15 years, by which time the Ice Bear will have paid for itself several times.
www.ice-energy.com
GREENER AIRCRAFT
Conventional airliners are heavy, thirsty, noisy and polluting, despite aeronautical designers' best efforts. But in the future we may be travelling in a flying wing or batwing (in which the entire fuselage becomes the means of lift) - an idea first suggested by Frederick Handley Page in 1961...
Read the entire article, which includes more green inventions, here.
The Red Herring also has a piece in it's September 11, 2006 print issue about "Green Gadgets, " which include the Solar Backpack seen here in May of 2005.
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