Scientists have created the world's smallest light bulb from a one atom-thick layer of graphene, the miracle material that promises to transform everything from smartphones and computers to cars, buildings and satellites. The ultrathin graphene was turned into a superheated filament - just like the thin wire of an incandescent light bulb - which glowed at a temperature of about 2500C.
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Scientists use graphene to create the world's smallest light bulb
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