Trees: they’re good for more than just shade, harboring wildlife, and carbon storage. A new sensor system developed by Voltree Power uses the energy produced by trees to wirelessly transmit signals with information about forest fires.
Mahatma Gandhi believed that the spinning wheel, or charkha, was a sign of self-reliance and independence. Now that belief is being taken to a new level with the e-charkha, a hand-driven spinning wheel that generates electricity.
Carbon nanotubes may be the water filter wave of the future, but Spectra Watermakers’ Solar Cube works pretty well in the meantime. The Cube (AKA the Spectra Solar Brackish Water System) is a portable solar and wind powered desalination unit that can produce 950 to 1500 gallons of fresh water … [continued]
On September 7 a robotic Prius took a cruise around San Francisco. The “Pribot” maneuvered through city and highway traffic along a 40 mile course. The only mash-up? A scrape at the Bay Bridge exit. I welcome our new vehicular overlords. In all seriousness, if this technology were to become … [continued]
Albert Einstein is probably most remembered by the public for his General Theory of Relativity, but how many remember his 1930 invention of a refrigerator that used no electricity? I wasn’t there when it was introduced, but I knew several people who had one, and they weren’t all that happy … [continued]
With my complete lack of faith in the US federal government, it warms my heart aplenty to see so much initiative by local governments and businesses in going green. On Friday of last week, the 19th, two announcements were made that saw plans revealed for two new renewable energy sources. … [continued]
After two failed attempts, New York City has installed a new-and-improved aluminum alloy turbine in the East River, the only of its kind in the United States. [social_buttons]The turbine is the first of 300 which the city hopes to install in the waterway. Unlike the typical river which flows in … [continued]
At first glance, the nearly hundred year old Grand Central Station doesn’t look particularly energy efficient—after all, the station does contain 60,000 lightbulbs. But New York City officials are doing their best to make sure the terminal sets an example for other public buildings in the city.
The Railway Gazette reports that Kawasaki has unveiled a new high-speed train called the Environmentally Friendly Super Express Train (efSET). The train will travel at a speed of 217 MPH (350 km/h).
Last week, Mitsubishi Gas Chemical exhibited a fuel cell-based power supply unit that is small enough to be used in an electric wheelchair. The microwave oven-sized unit, which weighs 22 kg, has an output of 300W and can run for eight hours with a 4-liter fuel tank. Hitachi exhibited a … [continued]
