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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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關恆坦言，在拍攝的過程中感到害怕，也意識到這樣的拍攝具有風險。這個過程，歷時三天。
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One way of increasing this supply could be getting more Dutch women working full-time. While female employment is high, more than half of Dutch women work part time – around three times the OECD average.
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