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Nanoscale Repulsion
When the proper materials are chosen, repulsive Casimir-Lifshitz forces can exist. The image shows one sphere being repelled from a plate and the other sphere being attracted.
Credit: J. N. Munday and F. Capasso, Harvard University
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A schematic of the experimental setup. A modified AFM is used to measure the Casimir-Lifshitz force between a sphere, which is attached to a cantilever, and a plate.
Credit: J. N. Munday and F. Capasso, Harvard University
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