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Wind Power Without the Blades: Big Pics. Téléchargements mobiles. Video - Breaking News Videos. Pistorius trial cross-examination ends Jewish center shooting suspect identified Day care hit-and-run suspect in custody Girl unwraps soldier dad for birthday What is Bitcoin?

Video - Breaking News Videos

What politicians get wrong about women Expert: Suspect hated by supremacists Fareed Zakaria: Putin is playing a game The race for new black box patents is on Mom 'felt God immediately' after shooting Sheryl Sandberg: Not running for office How are underwater pings triangulated? Sources: Malaysia plane dropped altitude Hear police radio call after stabbing Students stabbed at Pennsylvania school Zakaria: Russia's trying to create chaos Piecing together a plane accident puzzle Nancy Grace: Regret doesn't excuse deed.

The future and free electricity. Ancient Aliens: The Evidence (Season 1: Episode 1/5) WiTricity Corp. Home — Wireless Electricity Delivered Over Distance. Something in the Air(nergy): RCA’s WiFi Charging Device. Remember when Nokia came up with the futuristic concept of cell phone batteries that charge via radio waves? Their particular form of charger-less charging wasn’t expected to be available until around 2012. At CES 2010 this month, RCA introduced something even better that’s going to be available way sooner: a dongle that tops up your mobile device’s battery via WiFi signals.

Notice we didn’t say that it only tops up your cell phone battery; according to RCA reps, this little fella will work with just about all of your mobile devices. Powerful Magic: Cell Phones Charge With Ambient Electricity. (image via: Inhabitat ) How annoying is it to run out of cell phone power when you’re nowhere near a charger? The Nokia Research Center is working on technology that would allow cell phones to draw juice from ambient radio waves, meaning that you’ll never again be without a charge. The ambient electromagnetic radiation that’s already being transmitted from TV, radio and cell phone towers can be converted into electrical current easily enough.

It wouldn’t be enough to charge a dead battery quickly, but it would be enough to keep your phone’s battery topped up. If the concept sounds familiar to science geeks, it’s because Nikola Tesla had the same idea in 1893. Nikola Tesla. China's Green Beat - Wind Power in China. Bio mass fuel. Pistorius trial cross-examination ends1:11Jewish center shooting suspect identified1:12Day care hit-and-run suspect in custody1:11Girl unwraps soldier dad for birthday0:49What is Bitcoin?

bio mass fuel

1:29What politicians get wrong about women1:38 Expert: Suspect hated by supremacists3:09Fareed Zakaria: Putin is playing a game3:13The race for new black box patents is on2:20Mom 'felt God immediately' after shooting2:42Sheryl Sandberg: Not running for office1:21How are underwater pings triangulated? 1:27Sources: Malaysia plane dropped altitude Hear police radio call after stabbing Students stabbed at Pennsylvania school Zakaria: Russia's trying to create chaos Piecing together a plane accident puzzle Nancy Grace: Regret doesn't excuse deed. Egyptian eco stories: biogas from kitchen scraps and environmentally friendly housing for the poor.

Cairo, Egypt, photo by mshamma (source: Flickr Creative Commons) In a poor area of Cairo, Egypt, where ‘almost everything’ is reused and recycled, CNN visits one man’s home that is powered by gas from fermented kitchen waste.

Egyptian eco stories: biogas from kitchen scraps and environmentally friendly housing for the poor

The biogas unit – which also provides fertilizer – as well as a solar water heating system, were both built by the man himself. He is obviously as skillful as he is dedicated to self-sufficiency. Check out this inspiring report from CNN: CNN Eco Solutions – Making gas from garbage. In Africa's largest slum, a cooker that turns trash into fuel. Slum village puts trash to good use In Kibera, a low-tech project uses trash as a resource to produce heat for cookingLocal residents use Community Cooker to prepare meals and heat waterPeople deliver all sorts of garbage in exchange for cooking time Nairobi, Kenya (CNN) -- On the outskirts of Nairobi, Kenya, mountains of trash are piling up along the dusty streets and footpaths of Africa's largest slum.

In Africa's largest slum, a cooker that turns trash into fuel

Current Technology: Ocean Bot Runs on Geothermal Energy. Finding a natural, renewable, eco-friendly way to power machines is the holy grail of propulsion research. A team comprised of university researchers, NASA, and the US Navy recently unveiled an unmanned underwater vehicle that is powered entirely by geothermal energy. The vehicle, called the Sounding Oceanographic Langranian Observer Thermal Recharging (SOLO-TREC) uses the ocean’s changing temperatures to generate power. Thanks to phase change materials which melt at higher temperatures and solidify at lower ones, pressure changes in the engine trigger a hydraulic motor that recharges the vehicle’s batteries.

SOLO-TREC is an important breakthrough for marine biology, ocean exploration, and climate study.