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Twistron's like some drivites are becoming ever more available. Compelling is their feature an ability to operate in sea water. Could potentially harvest a large amounts of energy from the ocean. The yarn is made from tiny strands of carbon atoms 10,000 times smaller than a hair. The device exploits the ability of nanotubes to transfer motion into energy. This could mean electricity could be produced from a host of natural sources. Innovation could power internet-connected devices and smart clothing. It could also be used to create sea-power stations that can light entire cities. The days of having to carry a phone charger with you could soon be a thing of the past, thanks to a new type of yarn. Scientists have developed a stretchy yarn called twistron' made of carbon nanotubes that can generate its own power. The yarn could be used in a range of products, including smart clothing as all other devices.

Scientists have developed a stretchy yarn made of carbon nanotubes - tiny strands of carbon atoms up to 10,000 times smaller than a hair. Scientists have developed a stretchy yarn made of carbon nanotubes - tiny strands of carbon atoms up to 10,000 times smaller than a hair. The device, which exploits the ability of nanotubes to transfer spring-like motion into electrical energy, has numerous possible applications, according to the paper. In the lab, tests showed that a yarn weighing less than a housefly could light up a small LED light. When sewed into a t-shirt, it could power breathing sensors - like those used to monitor babies - using the stretch caused by the chest expanding at every inhalation Dr Haines said. This increases the voltage associated with the charge stored in the yarn, enabling the harvesting of electricity. Stretching the coiled twistron yarns 30 times a second generated 250 watts per kilogram of peak electrical power when normalized to the harvester’s weight, said Dr. Ray Baughman, director of the NanoTech Institute and a corresponding author of the study. 

But the twistron's most compelling feature was the ability to operate in sea water and potentially harvest vast amounts of energy from the ocean. 'The easiest way to think of twistron harvesters is, you have a piece of yarn, you stretch it, and out comes electricity,' said Carter Haines, a lead author of the study published in the journal Science. The device, which exploits the ability of nanotubes to transfer spring-like motion into electrical energy, has numerous possible applications, according to the paper. In the lab, tests showed that a yarn weighing less than a housefly could light up a small LED light.When sewed into a t-shirt, it could power breathing sensors - like those used to monitor babies - using the stretch caused by the chest expanding at every inhalation. The innovation could be used to power internet-connected devices and smart clothing, said the study's senior author Ray Baughman, a professor at The University of Texas at Dallas. 'Electronic textiles are of major commercial interest, but how are you going to power them,' Dr Baughman said in a statement. 'Harvesting electrical energy from human motion is one strategy for eliminating the need for batteries. Researchers describe “twistron” yarns and their possible applications, such as harvesting energy from the motion of ocean waves