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We're all familiar with the high-pitched squeak of basketball shoes on the court during games, or tires squealing on pavement. Scientists conducted several experiments and discovered that the geometry of the sneakers' tread patterns determines the squeak's frequency, enabling the team to make rubber blocks set to specific frequencies and slide them across glass surfaces to play Star Wars' "Imperial March."

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Jones told the Telegraph he initially thought the slur, shouted while black actors Michael B Jordan and Delroy Lindo were onstage, had been contained within the auditorium.

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