Scientists have created the ultimate ribbon. A thousand times thinner than a human hair and a few centimetres wide, the carbon sheet is stronger than steel for its weight, and could open the door to everything from artificial muscles to a space elevator capable of sending astronauts and tourists into orbit.
The team of nanotechnology experts from the University of Texas at Dallas and the Commonwealth Scientific and Industrial Research Organisation in Australia have developed a way to assemble a form of carbon called "nanotubes" into flat sheets.
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