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The scientific breakthrough that could make batteries last longer

US scientists say they have produced the first commercially accessible material that eliminates the loss of energy as electricity moves along a wire, a breakthrough that could mean longer-lasting batteries, more-efficient power grids and improved high-speed trains. Now, a group of researchers at the University of Rochester report that they have created a new superconductor that can operate at room temperature and at a much lower pressure than previously discovered superconducting materials.