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Researchers use graphene to draw energy from flowing water, self-powered micro-robots to follow?
What can't graphene do? The wonder material's been at the heart of a stunning number of technological breakthroughs of late, and now it's adding oil exploration to its long list of achievements. A team of researchers at Rensselaer Polytechnic Institute have discovered that the flow of good old H2O over a sheet of graphene can generate enough electricity to power "tiny sensors" used in tracking down oil deposits. The gang, led by professor Nikhil Koratkar, was able to suck 85 nanowatts of power out of a slab of graphene measuring .03 by .015 millimeters. The little sensors the researchers speak of are pumped into potential oil wells via a stream of water, and are then put to work sniffing out hydrocarbons indicative of hidden pockets of oil and natural gas. Of course, that doesn't have a whole lot of practical application for your average gadget consumer, but Koraktar sees a future filled with tiny water-powered robots and micro-submarines -- we can dig it.
Gecko-inspired water-powered robot scales glass, washes windows (sort of)
We've seen some pretty impressive Spidey-like robots in our time, but honestly, crawling walls isn't always enough to pique or interest. A robot that can scale buildings and wash windows -- now that's something to get excited about. Like this little wall climber, the gecko-inspired machine enlists the Bernoulli principle, using the flow of water through fluidic vacuum generators that allow the reptilian robot to get a grip on smooth surfaces. Next, the water is directed through a solenoid valve to a piston in the robot's spine, and finally, the excess liquid is expelled and used to get glass gleaming. Currently, the little machine is capable of carrying twice its weight, and uses a small battery to power a "wireless communication system" and the servos used to control its direction. We're definitely intrigued, but judging from the video (after the break), we're pretty sure it's no match for flesh and blood window washers.
H2O Shower Powered Radio blasts the Biebs by way of micro-turbine
Forget the tablet, 2011 is the year of the shower radio! Last week we reported on Toshiba's wirelessly connected water-proof song box and, just as our nerves began to settle from the excitement, someone came along and dropped this eco-friendly, shower-ready gem on us. Not only is the H2O Shower Powered Radio waterproof, but it actually uses the water from your shower to pump out the jams. The thing connects directly to your shower hose, and uses the flow of water to set a micro-turbine spinning, thus charging an integral battery and eliminating the need for disposables. As the video below points out, the radio "doesn't just offer 80s classics -- it has the full spectrum of FM," and its creators say it's compatible with 99 percent of showers, but what we really want to know is: how well does it crank the Ke$ha? Video after the break.
Samsung aiming for water-powered cellphones by 2010
We've seen quite a few prototype fuel-cell powered mobile devices, but Samsung's upping the ante by predicting that we'll all be running our phones on water by 2010. The company says it's developed a method to generate hydrogen by exposing water to metal, but the details are a little shaky -- we're guessing it's similar to the system used in the HydroPak generator, but it's hard to tell. Still, we've got no reason to doubt Samsung's engineers, who say the system currently provides about 10 hours of use, or about five days of average cell usage, and will eventually allow users to simply top off and go. That's every traveler's dream -- let's get this to market, Sammy.
Water-activated portable power generator on the horizon
We've seen our fair share of diminutive power generators, but rather than worrying with vibrations or hyperventilating, Millennium Cell and Horizon Fuel Cell have teamed up to deliver an iteration that's water-activated. The pair has been working together on this technology for some time now, and apparently, it's readying a beta that will be demonstrated at next year's CES. The portable power generator incorporates a "unique water-activated cartridge system," which is designed to quietly provide clean energy to consumer products in emergencies and when far, far away from an electrical outlet. Reportedly, the device will provide an AC socket alongside two USB connectors, an operating time of over 16-hours, infinite shelf-storage life and 400-watts of instant juice by just adding H2O. Regrettably, we still have no idea what this thing actually looks like, but considering that CES is less than two months away, we'll soon be seeing what this $400 gizmo can do up close and in person.
