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Inhabitat's Week in Green: nuclear power, body heat electronics, and Greener Gadgets
The Week in Green is a new item from our friends at Inhabitat, recapping the week's most interesting green developments and clean tech news for us. The past week saw several big developments in the energy industry as President Obama announced $8 Billion in loan guarantees for the construction of the first new nuclear plants in 30 years. Nuclear energy is basically emission free, which is a good thing - but what about all of that radioactive waste? Enter GE Hitachi, who announced a system capable of transforming nuclear waste into fuel. Meanwhile our friends in Norway are charging ahead with plans to build the world's largest wind turbine, and we're feeling a bit jealous of those forward-thinking Scandinavians. We also saw signs of the inevitable cyborg uprising as researchers unveiled energy generating gadgets that may one day be implanted within our bodies. MIT is working on a range of heat harvesting electronics that could power biomedical devices such as heart rate and blood sugar monitors. Meanwhile, the University of Michigan has developed an energy recycling prosthetic foot that makes walking easier for amputees. Even the planet is getting wired, as HP gets set to roll out its Central Nervous System for the Earth -- an array of billions of sensors that are paving the way for smarter cities, healthier humans, and the "Internet of Things". Finally we took a look at two more entries from the Greener Gadgets Design Competition that will be taking the stage next Thursday for live judging: an energy generating glider lounge for public spaces and bass-kicking subwoofer made from recycled car tires.
Tensegrity prosthetic foot promises to make walking easier
It may not boast built-in Bluetooth or an array of sensors and motors, but inventor Jerome Rifkin says his so-called Tensegrity prosthetic foot can nonetheless give amputees a more natural gait and make it easier for them to walk across difficult terrain. That's apparently possible thanks to a unique but simple mid-foot joint, which takes the place of the ankle joint more commonly found in prosthetic feet and creates a flexible arch in the middle of the foot. A range of springs and tensioned cables are used to control it and a second joint at the toe, which simply respond to the natural pressure of walking and adapt to uneven terrain. As you can see for yourself in the video of the most recent prototype after the break, that setup appears to work remarkably well, and Rifkin has even thankfully managed to tone down some of the squeaking noise that plagued earlier prototypes.
iWalk to release PowerFoot One prosthetic foot
It looks like some researchers at MIT and Brown University are about to see the fruits of their labor become commercially available, with upstart iWalk set to release the PowerFoot One prosthetic foot jointly developed by the two. Unlike similar devices, the PowerFoot One uses "tendon-like" springs and an electric motor to help propel the person forward, which supposedly reduces fatigue, improves balance and gives the wearer with a more fluid gait. A mix of sensors and specialized control algorithms also ensure that the person stays balanced while walking on slopes or stairs. While there's no word on what it'll cost, it should be commercially available sometime next summer.[Via Gadget Lab]
