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Taser Fired From Grenade Launcher Electrifies Safety Debate

Despite its wares being billed as "non-lethal," we'd rather not find ourselves on the business end of a product from Taser International, which designs weapons that use a strong dose of electricity to incapacitate people. After learning about the company's latest venture, we don't think we'll change our minds any time soon, either.

According to New Scientist, Taser is set to deliver prototypes of a new weapon -- the Human Electro-Muscular Incapacitation (HEMI) -- to the Pentagon early next year. The weapon can hit a target that's more than 60 meters away when fired from a standard 40-millimeter grenade launcher. Once the cartridge makes contact with the target, it delivers a powerful electric shock for as long as three minutes or until someone removes it -- which could be quite a while depending on the distance between shooter and target.

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Green Tech, Web

How Much Electricity Does It Take to Run the Web?

How Much Electricity Does it Take to Run the Web
Ever wonder exactly how much electricity it takes to run the Internet? All those Tweets, e-mails, and YouTube videos aren't powered by magic fairy dust, it takes electricity, and lots of it, to store and spread this content.

US Infrastructure (magazine) decided to examine the stats, and then put together the beautiful inforgraphic above illustrating how many servers there are in the world, how much electricity they use, and how much that power costs.

The quick facts:
  • Between 2000 and 2005, the amount of energy consumed by data centers and servers doubled worldwide.
  • Data centers account for 1.5 percent of all electricity consumption in the U.S., which is more than the combined total used by televisions across the country.
  • The electricity to run these servers cost $4.5 billion a year worldwide. Add in the necessary infrastructure (such as cooling) to run these centers and the bill jumps to $7.2

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Green Tech

Forget Panels, New Solar Shingles Offer Easier Installation

Many people would love to build an entirely "green" house. But "going green" isn't always cheap or practical. That's why we're so excited about Dow Chemical's new solar-powered shingles, which are meant to be used on asphalt-tiled roofs. According to The New York Times, the Powerhouse thin-film shingle can be installed by most roofers, and they're durable, too. You can even drop one from a roof, or even walk on it, without fear of causing damage. They're simply nailed to the structure like regular shingles, but you'll still need an electrician to connect the panels to the home's electrical system. The Powerhouse shingle will be test marketed in the middle of next year.

While these shingles are only about 10-percent efficient, Dow managing director Jane Palmieri says a lower price and easier installation could create a $5 billion market by 2015. The solar-powered shingles are about 10-to-15-percent cheaper than a mounted rack of solar panels. That still doesn't change the fact that you'll need a lot of these to really make a dent in your electricity bill. Unless you're putting new shingles on Bill Gates's house, it's probably not quite practical to use them. [From: The New York Times]

Green Tech

America's First 'Solar City' Coming to Florida



Given that Florida has accurately been coined The Sunshine State, it's not at all shocking to hear that America's first "solar city" will be built in the state's southwest corner. Or, at least that's the plan. According to a new report, West Palm Beach-based Kitson & Partners is currently developing a new city near Charlotte County, which will get juiced by a massive 75-megawatt solar plant. Said plant will cost around $300 million to build and will be installed by Florida Power & Light; if all goes well, homes will begin construction on a sizable plot of land dubbed Babcock Ranch by 2011. If things don't go so well, we're told that the actual power plant will still be erected and fed into the larger grid. In other words, Florida's gettin' some solar power, with or without this newfangled concrete jungle.

[Via: Fark]

Bad Economy Leading Folks to Steal Electricity


The effects of a bad economy are often described in abstract terms by national and local media. With that in mind, we've come across a story in USA Today that paints a more concrete picture of what a severely weakened economy looks like, and the lengths to which some people are going to go to cope with it.

According to the story, an increasing number of desperate Americans have resorted to stealing electricity. Some run wires directly from the power line into their circuit breaker, while others try tampering with their meter to lower their monthly cost. This, as you can imagine, is an extremely dangerous task, and, according to USA Today, it's happening more and more often as people find themselves unable to pay their bills.

American Electric Power, a company that serves hard-hit states like Michigan, Indiana, and Ohio, investigated 3,196 cases of electricity theft this past January and February. That is a 27-percent increase from last year.


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Green Tech

Google PowerMeter to Let You Track Electricity Usage



The New York Times is reporting Google will announce a free web service tomorrow called PowerMeter that'll let users track energy consumption in their homes or business, provided there's a means to upload the data. That part of the equation's gonna be up to other companies to create compatible devices, and while no manufacturing partners have been named, we'd suspect strange bedfellow GE will probably jump aboard pretty quickly. The service is expected to roll out in the next few months. Ready to give the boys in Menlo Park even more access to your life?

Update: The official site has launched. According to the FAQ, PowerMeter is currently in closed beta. There's also a video about the program, which you can peep after the break.

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Green Tech

This Garbage Truck Runs on Rubbish


The Brits get all the cool stuff -- Queen Elizabeth II, The Sex Pistols... and now a rubbish truck that runs on rubbish (sort of). That's right: up in Huddersfield they've just unleashed a modded three-and-a-half ton Smith Edison Ford Transit garbage truck that tools around, picking up garbage, hauls it to a nearby Energy from Waste power station and recycling center which then burns the 'bage to make electricity for the next day's route.

The garbage also produces about 10 megawatts of excess electricity per day which is dumped into the grid for added fun. The truck's got a top speed of about 50 miles per hour, and is apparently so quiet that the locals fear it could be dangerous to unsuspecting pedestrians. Maybe they could slap a speaker on there and pump some Oasis as a warning? Just a thought.

Green Tech, CES 2009

4Home Monitoring System Lets You Track and Control Energy Use


Last week at CES, 4Home Inc. showed off its new 4Home Energy system that lets you track and control the amount of heat and electricity used by any device in your home. The outlet modules and thermostat all report back to a base unit which can be accessed via a Web browser. From there, consumers can see not only broad energy use reports, but can drill down and see how much electricity a particular lamp uses. Best of all, the base unit can be accessed from anywhere, and can even be controlled by a smart phone.

Suggestions for saving power will be offered by the 4Home Energy software so that the home owner can cut costs and feel better by doing his/her part to waste less electricity.

Only downside? 4Home did not announce pricing or availability -- instead, it announced that it would be announcing pricing and availability on February 3.

Green Tech

Plasma Plant Turns Your Garbage into Electricity


The transmutation of garbage into energy is a particularly modern form of alchemy. We've seen it done on a smaller scale in the past, but now a company called Geoplasma is assembling the country's first plasma refuse plant in St. Lucie County, Florida. Scheduled to go online by 2011, the plant will process 1,500 tons of garbage a day, adding 60 megawatts to the power grid -- enough energy to power 50,000 homes. The plant works by vaporizing refuse with a 10,000 degrees Fahrenheit stream of plasma. The organic components (food, fluids, paper) create a pressurized gas that is then used to turn a turbine, while any inorganic refuse (metals) that may be present condenses, later to be collected for industrial uses. But will it power a Flux Capacitor?

[Via Inhabitat]

Green Tech

AlertMe Service Automatically Shuts Off Gadgets When You Leave


In-home power consumption monitors are trendy pieces of kit lately, with a new one popping up every few months. But, while they're all happy to just kick back and tell you what a wasteful pig you're being, a new service from UK security company AlertMe could actually make you more efficient. Subscribers to the company's monitoring plans, which start at about $260 plus another $17.50/month, will be able to purchase Smart Plugs for $43 each that can communicate wirelessly to an AlertMe Heating Controller.

From there subscribers can monitor their energy usage online via computer or phone. That's all standard stuff, but the service also includes keyfobs that will automatically turn down the heat and deactivate devices when you leave, and allows users to manually control the plugs and the thermostat by text message, meaning you'd never be more than a few thumb-presses (and a 20 cent service charge) away from a warm and inviting home.

[Via SmartPlanet]

Cell Phones, Green Tech

This Yo-Yo Charges Cell Phones



Our current energy crisis is spurring some novel ideas for generating electrcity. Design labs around the country are churning out ideas like this cell phone-charging yo-yo, which can generate small amounts of energy to power personal electronics in hopes of taking that small burden off the grid.

The cell phone-charging yo-yo is a simple concept: A conductor and a magnet are housed inside the yo-yo, and energy is created as the yo-yo spins. The charge is then held in a battery which can be connected to a cell phone, providing the power to place calls.

If it ever gets manufactured, you'll be able to keep your restless children (or inner child) busy while squeaking out some extra talk time on your iPhone. Check out the video concept after the break. [From: Textually.org]

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Green Tech

Recharge Your Cell Phone with Your Breasts



We've seen a lot of ways for humans to generate electricity for their electronic toys, from energy producing dance floors, to people powered gyms, and boat loads of solar clothing. But the oddest concept we've heard about so far is a kinetic energy bra.

The bra, which is currently just an idea being tossed around by Slate contributor Adrienne So, would convert breast motion to energy using special fabric made of nano-wires. As the breasts sway, they would cause the wires to rub against each other generating small amounts of friction and electricity, about 80 milliwatts, just enough to power a cell phone.

The idea will likely never see the light of day, but it did give us a good excuse to write about electricity-producing bras. Hee hee bras... [Source: Slate, Via: Textually]

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

Seadog Pump Could Usher in an Ocean-Powered Revolution

Seadog Pump Could Usher in an Ocean Powered Revolution
Generating usable amounts of power without burning fossil fuels or collecting piles of nuclear sludge has become the holy grail of the environmental movement and much of the scientific community. Solar has proven too expensive and inefficient so far, while wind power is criticized as unsightly and occasionally dangerous to wildlife.

Scientists have been searching for a way to harness the power of ocean waves and tidal flows, with varying degrees of success. Salt water corrodes electronics and the forces involved aren't nearly as dramatic as those at work at Niagara Falls or the Hoover Dam. A company out of Minnesota, Independent Natural Resources (INR), has developed the Seadog Pump, which churns out power from ocean waves at a relatively high efficiency, converting 22 percent of the ocean wave energy into usable energy. The Seadog also lacks any electronics, making it extraordinarily cheap and simple to build as well as making it much more resistant to the corrosive powers of the sea.

INR plans to have their first commercial facility up and running by the end of the year or early 2009. [Source: Crave]

Computers, Green Tech

Knee Brace Captures Energy, Powers Mobile Devices

Energy-capturing knee brace.

Every step you take could soon be the power source for your mobile phone, MP3 player or portable GPS device. A group of university researchers from the United States and Canada have developed a prototype knee brace that captures energy in a way that's similar to how some hybrid cars charge their batteries by converting energy while they brake.

"There is power to be harvested from various places in the body, and you can use that to generate electricity. The knee is probably the best place," said Arthur Kuo, an associate professor of mechanical engineering at the University of Michigan, in a statement released yesterday.

Kou and colleagues determined that when a person stops his or her lower leg from swinging forward into a step, the majority of the energy expended is just lost. The new prototype knee brace is built to capture and store that energy more efficiently than other human powered electricity generators. For example, a hand-crank generator requires 6.4 watts of metabolic power from a person to generate one watt of electricity because of inefficiencies -- but the knee brace requires less than one watt of metabolic power to produce one watt of electricity.

The challenge for the team of researchers, which also includes staff from Simon Fraser University in Canada and the University of Pittsburgh, is to make the device lighter so it doesn't tire the wearer. For now it is too bulky and heavy to be practical.

Kuo says that in the future, a light device could be very useful to hikers or soldiers who don't have quick access to an energy source. For people with a prosthetic limb, the energy capture device could be on one knee while a battery is implanted within the fake limb.

From The Daily Mail, Engadget and Reuters.

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