Wonder material the carbon nanotube has another new application: A team at the University of Michigan has worked out how to coat cotton threads with a polymer and nanotube mix to produce conductive mini-cables. Conductive threads per se aren't new, but they generally involve metal which limits their utility—this new material is flexible enough to be woven, won't corrode, and can carry enough current to light up an LED. Crazily the tubes are also suitable for clinical and chemical biosensing, which could point the way for uses in future military wear. [TechnologyReview]

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A technique known as nanolithography was used to build these Obama faces, combining 150 million carbon nanotubes to construct each individual half-millimeter visage. Depending on your political leanings, the result is either the cutest wittle powitician ever or proof that science, in the wrong hands, will engineer miniature robotic Democrats who distract with a message of hope while eating our flesh. As for the undecideds...I'll be honest here. I'm so sick of hearing what those dudes "think." [Flickr via Wired]

Carbon nanotubes have been popping on Giz for a while, touted as one of the next wonder-materials—but a new development in their manufacture means they may not remain "future technology" for long. In fact the work of a team at CSIRO and the University of Texas at Dallas means that commercial-scale production of sheets of carbon nanotube "textile" is possible at up to seven metres per minute.

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There are plenty of carbon footprint calculators online, but now treehugging mathematicians can easily calculate how much damage they are doing to mother Earth using this handy pocket-sized CO2 calculator. Electricity use, water, trash and gas can all be managed from this simple, portable device (although, I don't see a button on there to calculate the impact all of your calculating has on the environment). Obviously, the CO2Calc is only available in Japan, but I'm sure it won't be long until a similar product makes its way stateside. And yes, it is solar powered if you were wondering—which is too bad. It would be funnier if it wasn't. [CO2Calc via Kilian Nakamura]

Japanese scientists are so hyped up on the possibilities of building a real life space elevator that in just two months' time the country is playing host to a conference designed to set a production timetable. Carbon nanotube technology has advanced so rapidly that a material capable of withstanding the amazing forces in the space elevator cable is almost within reach: according to the chairman of the Japan Space Elevator Association it'd only need to be four times stronger than the current strongest nanotube rope.

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Carbon nanotubes are one of the surprising new carbon supermaterials, and it looks like their application in supercapacitors may have a role in replacing clunky old car battery tech. Scientists at the University of Texas at Dallas have invented a technique to make supercapacitor "paper" made from randomly tangled carbon nanotubes embedded in a polymer. Both chemical batteries and capacitors store electrical charge, in differing ways, but nanotech supercapacitors could store more energy in a smaller space, without the dangers associated with chemical systems. Potentially excellent news given the rise of the hybrid car. Better yet the new technique is "easily scalable for device fabrication on an industrial scale," so it might end up in real products sooner rather than later. [Physorg]

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The Draganfly series of heli cams have been impressive, but the just announced X6 is freaking amazing. The triple-tipped carbon fibre body has two carbon rotors on each end. The design allows it to move in all directions rapidly, provide enough control to zip around indoors yet resist up to 29 kilometres per hour of wind.

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Japanese researchers have developed a new material capable of stretching to roughly twice its natural shape while conducting electricity—before snapping back with no damage to the circuit. It's essentially a rubber polymer filled with carbon nanotubes, and it could be used to create anything from a curved eye-replacement camera (which is currently in development) to a new class of NERF footballs. So are you thinking what we're thinking? Yes, bring on the prank Silly Putty. And who's the sicko pasting T1000 shots on my friendly post? [Reuters via Newlaunches]

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The oceans already absorb megatons of atmospheric carbon, but scientists say that there's a way to boost this so that CO2 levels could drop to pre-industrial age levels. The answer sounds like a cocktail recipe: add lime. Limed seawater has boosted alkalinity, which lets it absorb more CO2 and stops it from releasing it back so readily. The idea's been around for a while, but the new proposition is that lime production should occur in areas rich in energy resources and limestone, but where commercial power generation is overly expensive. One suggested location is Nullarbor Plain in Australia which has limestone and abundant sunlight for solar power. Sounds like a whacky but not-infeasible scheme, though I suspect there're quite a few "polluting the oceans" concerns to get around before it could be tried out. [Physorg]

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A Don at Oxford University has come up with a novel way to measure the hotness of chilli peppers objectively. Using carbon nanotubes and adsortive stripping voltammetry, Professor Richard Compton's idea could end up replacing the Scoville test, a subjective taste test created almost a century ago, that uses volunteers, and works on a "which is hotter than which" basis.

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