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Green Tech

Kooky, 'Green' Japanese Electric Bikes Were Ahead of Their Time

These days, everybody's looking for "greener" ways to get around town. Honestly, it wouldn't surprise us to discover that our mom had ditched her SUV for a bicycle. This wasn't the case until fairly recently in the U.S., but the Japanese, ever the technology mavericks, were green when green wasn't cool. Need evidence?

Just check out these bike models from Shukuno Rintendo that Today and Tomorrow found. Yes, it's awesome that one, the Fire Trick Bob (pictured above), is powered by a tiny turbine that'll produce 4.4 horsepower of raw cycling energy. Another, the Aqua Trick Bob, uses a series of tanks filled with water and air that'll propel the bike 50 meters -- also awesome in our books. But it's even more awesome that this series of bikes was manufactured between 1996 and 1998. Back then, our bicycles were still gathering dust in the garage.

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Green Tech

Mini Hydro Turbine Concept Brings Renewable Energy to Bathrooms


Environmentalists would have you believe that leaving the faucet running while you brush your teeth puts an unnecessary drain on the environment. We always disagreed, and if Jin Woo Han's concept Mini Hydro Turbine ever goes into production we might finally have something to back up our argument. The device would capture the "free" energy of your tap to spin a little generator, in theory producing enough juice to charge up an electric toothbrush or shaver.

All this actually sounds somewhat reasonable, but Han's suggestion of powering your boiler with this thing is probably a bit optimistic. It would also take quite an optimist to think this could some day appear in a bathroom made of tiles and not pixels, but we'll keep on hoping; pairing this with a turbine toilet might enable us to take our homes completely off the grid -- or our bathrooms at least.

[Via Gadget Lab]

Green Tech

New Wind Turbines Are At Least 30% More Efficient, Earth One Step Closer to Salvation

Still addicted to oil like the rest of the world? You might reconsider wind power rehab now that a startup called ExRo has developed turbines that it says are consistently 30-percent -- and in some situations as much as 100% -- more efficient than the standard kind. The traditionally-used mechanical transmissions have been replaced with an inexpensive electric alternative that can adapt to changes in wind speed more efficiently. Also, many small generators are used instead of a large one, so the turbines can be customized in production to suit the intended installation site. If this is the real deal, it beats the 0.1% increase we saw in solar cell efficiency a few months ago, and those Maglev uber-turbines are still on the horizon. Hey Sun -- jealous yet?

[Via DailyTech]

iPod, Green Tech

Energy-Generating Shoes Power iPods


For shame. We know good and well engineers can concoct energy-generating garb that actually looks good enough to wear, but evidently those fashion-minded gurus weren't hired for this project. Granted, we have all ideas the image you're quizzically staring at above is NTT's first go at a pair of power-packing sandals, but there's clearly a good ways to go before these things are cute / safe enough to wear on the streets. Might we suggest shoving all that hardware inside of something? The "all hanging out" look just isn't working here.

[Via TokyoMango, image courtesy of AFP / Getty]

Green Tech, Visionaries

Student Builds Wind Generator for Developing World from Scraps

Wind Generator for Developing World Built from Scraps
A design student from the University of Portsmouth has built a wind turbine capable of providing light for a home in the developing world for only £20 ($37).

The generator is built primarily out of scraps and could be easily assembled in a day. The generator design uses easily-found materials like an old bike frame and wheel bearings, the magneto from a Vespa scooter, a car battery, and bits of wood -- it is possible that the innovative power source could be assembled for even cheaper in the developing world.

Max Robson, the designer, was inspired by his father, Ashley, who had talked of building such a device. "My dad wanted to do something like this but I beat him to it," Max said.

The ultra cheap turbine, once fully-charged, can provide light for up to 63 hours and radio for 30. The nearest competitor to the scrap heap wind generator, according to Robinson, costs about £2,000, or a little over $3,700, which means this is a truly game-changing innovation. [From: Daily Mail]

Green Tech

Offshore Wind Power Park to Energize Delaware Homes


Unlike Rock Port, Missouri, the entire state of Delaware won't be 100-percent wind-powered after Bluewater Wind constructs a $1.6 billion wind park just off its shore, but the state will be able to "light about 50,000 homes a year" for the duration of the 25-year contract. Said agreement was just nailed down between the aforesaid firm and Delmarva Power, and it hopes to start powering homes via wind by 2012.

The offshore site will sit around 12 miles off Rehoboth Beach, with a number of turbines to be planted 90-feet into the sea floor and sport three blades apiece measuring 150-feet long. It's noted that vacationers and locals alike won't be able to notice the park from the beach except on a few remarkably clear days, but if their energy bills sink because of it, we don't really think they'll mind, anyway. [Source: CNN]

Green Tech

Tidal Forces to Power 200,000 Homes

Tidal Forces to Power 200,000 Korean Homes

Environmental concerns and the escalating cost of oil worldwide has resulted in huge gains in the various fields of "alternative" energy production. People are proposing to extract power from just about every natural force on the planet, and, while wind has been getting much of the buzz lately, an upcoming installation in South Korea promises to power 200,000 homes from sea currents.

The plan entails sinking 300 60-foot-high turbines off the coast, deep enough where they won't be able to be struck by ships and in a place where the swelling and reclining tides will spin their blades. Tests are beginning early next year with a single turbine, but it's not expected that the other 299 will be fully up to speed until around 2015.

If all goes well, this could certainly provide an alternative to the controversial plans for putting in wind turbines off the coast of Cape Cod. These turbines would be completely hidden under-water, but we can't help but wonder just what would happen to any fish unlucky enough to get sucked through one ...

From Newsvine and The Telegraph

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