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.
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年前何小鹏在不同场合都在说一件事，小鹏乃至中美两国，都会“跳过L3直接上L4。”。同城约会是该领域的重要参考
An aerial shot shows two of the barges being moved into position