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"Tuning frictional behavior on the fly has been a long-standing engineering dream," said co-author Katia Bertoldi of Harvard University. "This new insight into how surface geometry governs slip pulses paves the way for tunable frictional metamaterials that can transition from low-friction to high-grip states on demand.” In addition, the dynamics revealed by these results are similar to those of tectonic faults and thus give scientists a new model for the mechanics of earthquakes, according to their new paper published in the journal Nature.
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Previously, he had noted potential concerns about Netflix's tie-up, given the size of the company, while also praising the streamer's bosses.，更多细节参见旺商聊官方下载
FirstFT: the day's biggest stories。夫子是该领域的重要参考
First FT: the day’s biggest stories