Green Tech

How the White House is aiming the X Prize model at big problems

On October 4, 2004, the idea of incentive prizes hit the mainstream when Burt Rutan and his team at Scaled Composites launched SpaceShip One into orbit for the second time and won the $10 million Ansari X Prize.

Since then, prizes like that have become more and more common, and though the X Prizes are still the gold standard, there are now similar competitions from medical research to science to business, and beyond.

Not long ago, however, the U.S. government got into the business (PDF) of using competitions like these to come up with new ways to solve existing … Read more

Bosch robot lawn mower gives you more hammock time

Why waste your summer cutting grass yourself? Get a machine to do it. Robot lawn mowers are nothing new, but Bosch is introducing one that's apparently more automated than competitors.

The Bosch Indego is an electric, autonomous mower that can cut up to 10,700 square feet of grass with little supervision, according to IEEE Spectrum.

All you need to do is install a guide wire on the edge of your lawn to keep the Indego in. It will automatically skirt all obstacles on your lawn including your pink flamingos, croquet mallets, and flower beds. … Read more

Nest Learning Thermostat lands on Amazon

You can now add Amazon to your list of shopping choices for Nest's thermostat/gadget.

Initially only available through home installers, the $249 climate control device has started appearing at retailers such as Lowes and Apple. It can also be purchased through Nest's online store.

CNET Editor-in-Chief/Nest reviewer Lindsey Turrentine gave it an enthusiastic five-star review, as do 30 of the 50 customer reviews on Amazon. Price seems to be the main sticking point for the less positive reviews.

(Via The Verge)

Kids' playhouse made from recycled potato peels, veggie oil

More and more these days, we're picking up drink bottles and plastic utensils crafted from corn rather than regular plastic. So, how about products made from agricultural waste and food scraps? Glad you asked. The Biobased Kidshouse from Dutch consortium BE-Basic is made entirely from natural materials such as agri-waste, tree bark, and potato peels.

The panels are made from compressed straw. The roof is waterproofed with vegetable oils. The electric sockets are where the potato peel bioplastic comes in. … Read more

KudoCase: Solar ink powers iPad for 10 days

The sun is busy powering all sort of devices these days. There's a solar plane, a solar keyboard, and a solar Apple data center. Solar iPad and iPhone cases have been around, but they often require a fair amount of sunshine to make them work well.

The KudoCase from Kudo is taking a slightly different approach. As far as the KudoCase is concerned, sunlight is nice, but indoor light will do just fine.

Kudo claims that your iPad can go 10 days, with 2 hours of iPad use per day with average light. That's all a little vague, but it's also plenty intriguing. I usually plug my iPad in for a recharge every two days. It would be nice to extend that time a bit.… Read more

Gucci's liquid wood sunglasses can biodegrade

Plastic shades seem so passe, compared to Gucci's new liquid wood sunglasses.

The Italian high-end fashion giant worked with sunglasses manufacturer Safilo to create the "green" glasses, which sport a frame made of material never used before in production eyewear: liquid wood, a renewable plastic of sorts that actually consists of biodegradable wood fiber, resins, and the polymer lignin. … Read more

Solar plane midway through first intercontinental flight

Solar Impulse, a Swiss sun-powered aircraft, on Friday finished the first leg of its attempt at an intercontinental flight without using a single drop of fuel.

The solar plane took off Thursday from Payerne, Switzerland, bound for Morocco. It landed safely Friday on a planned three-day technical stopover in Madrid, where it will get a new pilot.

If successful, the 1,550-mile journey will be the longest to date for the craft, which last year completed its first international flight from its home in Switzerland to Brussels.

Pilot Andre Borschberg handled the first leg of the trip for the Solar … Read more

Hitch a ride through Google's cloud

Your Gmail box lives somewhere in the jumble of servers, cables, and hard drives known as the "cloud" but it often migrates in search of the ideal location.

Google today released an animation that answers the question: what happens when I press send on Gmail? The company created the interactive feature called The Story of Send to highlight the security and relatively low energy footprint of its data centers. The graphics repeat Google's estimate that its data centers use 50 percent less energy than a typical data center and 30 percent of their data center energy is … Read more

Step on it: Virus could lead to motion-powered gadgets

Scientists are genetically engineering viruses in the pursuit of better battery life, perhaps leading to smartphones charged from the motion of walking.

The Department of Energy's Lawrence Berkeley National Laboratory yesterday described a microelectronic device that uses a benign virus to build up electric charge from movement.

Its first prototype was able to display the No. 1 on an LCD display when a person pressed a postage-stamp size button.

That amount of current isn't useful enough to charge common electronics, such as a music player or phone. But the researchers' novel approach to harvesting energy from motion shows … Read more

Got a deck? Solar panels now a plug-in appliance

It's a green-energy geek's dream do-it-yourself project: attach a few solar panels to your deck and watch your electric bills go down. Now one company is selling such a product.

SpinRay Energy has developed a system that lets consumers install up to five solar panels on their decks and plug them into an outdoor power outlet. People can install one panel at a time, and get up to 1,000 watts of power with five installed.

The main electrical components of the system have the UL safety certification, including the solar panel and the microinverter, which converts direct … Read more