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Electricity

— Good Thinking

Pedal Power provides off-grid power while keeping you fit

By - November 18, 2013 9 Pictures
If you'd like to live off-grid but still retain access to power when you need it, then New York-based company Pedal Power might have you covered – providing you don't mind putting in the legwork, that is. The firm has launched a Kickstarter campaign for its two stationary bike-like gadgets that are claimed to produce enough electricity to run a laptop when pedaled. Read More
— Electronics

Power-harvesting device converts microwave signals into electricity

By - November 7, 2013 2 Pictures
Joining the ranks of devices designed to harvest energy from ambient electromagnetic radiation comes an electrical circuit from researchers at Duke University that can be tuned to capture microwave energy from various sources, including satellite, sound or Wi-Fi signals. The researchers say the device converts otherwise lost energy into direct current voltage with efficiencies similar to that of current solar cells. Read More
— Around The Home

"Ene-Farm" home fuel cell moves into a condo

By - October 21, 2013 1 Picture
Panasonic and Tokyo Gas have continued joint development of their "Ene-Farm" home fuel cell unit, which became the world's first commercialized fuel cell system targeted at household heating and electricity generation when it went on sale in Japan in May 2009. The latest model is aimed at use in condominiums and features a number of modifications to ensure the units meet the more stringent installation standards placed on those buildings. Read More
— Electronics

Paper Generators bring a spark of new life to the printed page

By - October 10, 2013 7 Pictures
Disney Research, Pittsburgh and Carnegie Mellon University have released details of another one of their collaborative projects, this one involving thin, flexible generators that can be built into paper items such as the pages of a book. By simply rubbing or tapping one of these pages, users can illuminate LEDs, prompt applications on linked computers, or even activate e-ink displays – no batteries or outlets required. Read More
— Good Thinking

Wired merry-go-rounds provide energy to remote schools in Ghana

By - October 2, 2013 6 Pictures
At first glance, a merry-go-round that generates electricity appears to be a charming idea. But Empower Playgrounds President, Ben Markham, came up with the idea in 2006 during an 18-month stint volunteering in Ghana. There he was struck by the lack of lighting in rural schools and dwellings, as well as the paucity of playground equipment. A charming idea it remains, but it's a serious one, too. Read More
— Science

Dramatic phone-charging experiment tells us little about lightning

By - October 1, 2013 4 Pictures
In a development that would seem to bring a whole new meaning to the term Lightning charger, Nokia and the University of Southampton claim to have used simulated lightning to charge a Nokia Lumia 925 mobile phone. A University press release states that a 200,000 V was "sent" across a 30 cm gap with the light and heat generated supposedly similar to that of a lightning strike. But is there really any cause for excitement, or are we merely witnessing special effects? Read More
— Environment

Clip-on wind turbine aims to supplement solar panels

By - August 1, 2013 5 Pictures
Crowdfunding has come to the small wind generation field with an Indiegogo campaign intended for an interesting target niche: a small wind generator designed to be clipped onto solar panels. According to his pitch, Michael Ring has not only created a prototype, but calculated possible energy returns, targeted a price point and lined up suppliers for initial deliveries and has turned to Indeigogo to get his small startup off the launch pad. Read More
— Environment

ARES system to put energy storage on the right track

By - July 22, 2013 6 Pictures
We’ve recently looked at ocean-based energy storage system concepts from MIT and Subhydro AS that are designed to overcome the intermittency problems of renewable energy sources like wind and solar by pumping water out of large tanks and using gravity to let it back in and generate electricity when needed. Santa Barbara, California-based company Advanced Rail Energy Storage (ARES) has come up with a land-based alternative that would provide grid scale energy storage using electric locomotives. Read More
— Science

Streaming media: New fuel cell powers a mobile phone with pee

By - July 18, 2013 4 Pictures
If asked what would be a great power source for mobile phones, it’s a fair bet that most people wouldn't make urine their first choice. But that's exactly what a group of scientists at Bristol Robotics Laboratory in the UK have done. As part of a project to find new ways to provide electricity for small devices in emergency situations and developing countries they have created a new fuel cell system powered by pee. Read More

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