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Electricity

3D Printing

3D-printed AirEnergy3D takes open source approach to wind turbines

The AirEnergy3D is an open source, 3D-printed, portable wind turbine prototype whose creators claim will be able to generate up to 300 W of power. Designed to be easily assembled and disassembled without tools, the device is intended to be compact enough to be transported in a backpack, allowing it to be taken camping or anywhere else that there is a breeze and no access to the electricity grid.Read More

Electronics

Mobile phones could be charged using sound

Four years ago, we first heard about how Korean scientists had proposed using sound to charge mobile phones. They explained that it could be done via a piezoelectric effect, in which zinc oxide nanowires converted sound-caused vibrations into electricity. At the time, the researchers couldn't generate enough of a current to actually charge a phone. Now, however, scientists from Nokia and Queen Mary University of London (QMUL) have succeeded in doing so. Read More

Electronics

oneTesla shrinks its singing Tesla coil kit to palm-friendly proportions

The folks who successfully crowdfunded a DIY singing Tesla coil kit last year have taken to Kickstarter again to bring a smaller version into production. Like its older and bigger brother, the tinyTesla shoots out bolts of artificial lightning while playing MIDI music using the electricity itself. It looks like that polyphonic MIDI version of Danger High Voltage by Electric Six might just come in handy after all.Read More

Environment

All-in-one system uses plant oils to power, heat, and cool the home

A team of researchers led by Newcastle University has produced an all-in-one Biofuel Micro Trigeneration (BMT) prototype system fueled entirely by unprocessed plant oils that provides combined cooling, heating, and electrical power. This first-generation system is designed for use in homes, with the potential for up-scaling for larger commercial and industrial applications. Read More

Electronics

Google offers up US$1 million prize to shrink size of power inverters

The old saying says good things come in small packages. Google and the Institute of Electrical and Electronic Engineers (IEEE) seem to agree having launched the Little Box Challenge, an open competition with a US$1 million first prize to find innovative electronic designs to shrink power inverters down from their current bigger-than-a-bread-box size to something less than the size of a small laptop. Read More

Science

Stanford researchers develop self-cooling solar cells

Photovoltaic cells are one of the more promising alternative energy sources. Mechanically they are very simple, with no moving parts, and are clean and emission-free. Unfortunately they are also inefficient. One of the reasons for this is that they overheat, a problem that a Stanford University team under electrical engineering professor Shanhui Fan is addressing with the development of a thin glass layer that makes solar cells self-cooling. Read More

Environment

Sainsbury’s supermarket to be powered entirely by its own food waste

It's an unfortunate fact that every day around the world, supermarkets throw out tons of food that has spoiled before it could be purchased. While it would be best if that spoilage could be avoided in the first place, British grocery chain Sainsbury's is taking what might be the next-best approach – it's about to start using that unsellable food to power one of its stores. Read More

Science

New device generates electricity from condensation

MIT researchers have found a way to generate small amounts of electricity from condensation, by having electrically-charged droplets jump between superhydrophobic (water-repelling) and hydrophilic (water-attracting) metal plates. The advance could be especially useful in remote areas or developing countries, not least because it produces clean water as a side product. Read More

Environment

PowerCube pop-up solar generator provides relief to disaster-struck areas

It was seven years ago that Ecosphere Technologies revealed its first iteration of a self-contained relief unit to provide power, water and shelter to disaster-struck areas. The company has since been busy refining the system's form and function and now announces the completion of what it says to be the world's largest deployable solar power generator. Capable of generating 15 kW of electricity, PowerCube is transported as a standard shipping container and can morph into a shelter, water treatment plant and communications base all with a push of a button. Read More

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