"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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"If I get disappointed, I get disappointed really hard - so I actually do this thing where I'll look at who I'm up against and decide, 'OK, I'm rooting for them instead'."
第八条 国家加强原子能科学知识和法律知识的宣传教育，鼓励有条件的地方人民政府、核设施营运单位以及其他有关单位建设和利用科普场馆、设施，开展原子能科学知识普及活动。