Ben MorrisTechnology of Business Editor
When shoes slide across a floor, wave-like deformations of the sole can generate squeaking. The pitch of the squeak depends on the rate at which deformations are generated.
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How to watch: The first two episodes of The Fall and Rise of Reggie Dinkins are now streaming on Peacock. New episodes air Mondays at 8 p.m. ET on NBC, and stream the following day on Peacock.