The objects have been taken to Cardiff University's lab. Conservator Nicola Emmerson is painstakingly removing the dirt of the dig from an ornate copper brooch.
"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.，详情可参考heLLoword翻译官方下载
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3. 数学之美：参数化几何体与克莱因瓶