Фото: Stringer / Reuters
High-speed imaging reveals that the squeak of soft–rigid frictional interfaces, like sneakers sliding on a basketball court, arises from intersonic opening slip pulses—analogous to earthquake ruptures—that thin ridges on the rubber confine to repeat at a musical frequency.
。搜狗输入法下载对此有专业解读
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developed machine-readable format called "MICR" for magnetic ink character