Kites Tap Megawatts of Wind Energy

In this brief talk, Saul Griffith unveils the invention his new company Makani Power has been working on: giant kite turbines that create surprising amounts of clean, renewable energy. Griffith looks for elegant ways to make real things, from low-cost eyeglasses to a "smart" rope that senses its load. His latest projects include open-source inventions and elegant new ways to generate power.
Saul Griffith: Inventor http://www.ted.com/speakers/saul_griffith.html
Video originally from http://cli.gs/GYZUqH

Mind-Controlled Robots! Mind-Controlled Robots!

We're not just moving toward the day when robots can do everything for us. We're apparently moving toward the day when we can just think about what we want done, and get it (almost) presto.

Japan's Honda Research Institute and precision-equipment manufacturer Shimadzu on Tuesday demonstrated a rather mind-boggling technology that lets humans control a bot through thought alone--thus taking the pesky button pressing, voice commands, and remote controls out of the equation.

But don't start trying to telepath your Scooba into writing your doctoral thesis just yet. For now, researchers are focusing on getting the latest version of Honda's Asimo humanoid bot to perform simple actions like raising an arm or leg.

The system involves a helmet full of electroencephalography and near-infrared spectroscopy sensors that monitor electrical brainwaves and cerebral blood flow, signals that alter slightly during the human thought process. The robot controller thinks of one of a limited number of specific gestures it wants from Asimo, which has been fitted with a Brain Machine Interface.

The data is then analyzed on a real-time basis to distinguish what the user imagined and transmitted wirelessly to the bot, which makes corresponding movements.

Researchers in Tokyo showed a demonstration video of the system in which a user is shown a card with a picture of a right hand on it. After the user thinks about his right hand, the command from the user's brain is then transferred to Asimo, which acknowledges the request and raises its own robotic limb.

Unfortunately, the scientists did not demo the technology live due to what they said were space constraints and concerns about possible distractions to the person's concentration--presumably in the form of blinding flashbulbs and the stunned faces of onlookers.

Honda nonetheless says tests of the system have produced results with 90 percent accuracy.

Originally from http://news.cnet.com/8301-17938_105-10208469-1.html  Leslie Katz, senior editor of CNET's Crave, covers gadgets, games, and most other digital distractions. As a co-host of the CNET News Daily Podcast, she sometimes tries to channel Terry Gross. E-mail Leslie.

Solar Panels for Less than $1 a Watt!

By JOHN MARKOFF

Published: December 18, 2007

SAN JOSE, Calif. — Nanosolar, a heavily financed Silicon Valley start-up whose backers include Google’s co-founders, plans to announce Tuesday that it has begun selling its innovative solar panels, which are made using a technique that is being held out as the future of solar power manufacturing.

The company, which has raised $150 million and built a 200,000-square-foot factory here, is developing a new manufacturing process that “prints” photovoltaic material on aluminum backing, a process the company says will reduce the manufacturing cost of the basic photovoltaic module by more than 80 percent.

Nanosolar, which recently hired a top manufacturing executive from I.B.M., said that it had orders for its first 18 months of manufacturing capacity. The photovoltaic panels will be made in Silicon Valley and in a second plant in Germany.

While many photovoltaic start-up companies are concentrating on increasing the efficiency with which their systems convert sunlight, Nanosolar has focused on lowering the manufacturing cost. Its process is akin to a large printing press, rather than the usual semiconductor manufacturing techniques that deposit thin films on silicon wafers.

Nanosolar’s founder and chief executive, Martin Roscheisen, claims to be the first solar panel manufacturer to be able to profitably sell solar panels for less than $1 a watt. That is the price at which solar energy becomes less expensive than coal.

“With a $1-per-watt panel,” he said, “it is possible to build $2-per-watt systems.”

According to the Energy Department, building a new coal plant costs about $2.1 a watt, plus the cost of fuel and emissions, he said.

The first Nanosolar panels are destined for a one-megawatt solar plant to be installed in Germany on a former landfill owned by a waste management company. The plant, being developed by Beck Energy, is expected to initially supply electrical power for about 400 homes.

The company chose to build its plant in southern San Jose, news that was cheered by local development officials. Much of the microelectronics industry created here has moved to Asia and new factories are a rare commodity in Silicon Valley.

Originally from http://www.nytimes.com/2007/12/18/technology/18solar.html?_r=3&ref=technology&oref=slogin&oref=slogin&oref=slogin