Anonymous Cow writes "Researchers have inflated gas-filled balloons of graphene, the atom-thick carbon material being used to make super-small transistors. Apart from giving them a valid claim to be in the Guinness Book of Records, it could apparently be handy for weighing microscopic objects. 'The sheets were used to seal microscopic wells made in a layer of silica glass, forming a kind of drum head. The membranes were held in place only by the van der Waals forces that make things sticky at microscopic scales. The wells varied from 1 to 100 square micrometers in area and 250 nanometers to 3 micrometers deep.'"
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