"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.
2. Barriers to Entry and Innovation
Дания захотела отказать в убежище украинцам призывного возраста09:44，推荐阅读WPS官方版本下载获取更多信息
Как россиянин переехал в Китай:особенности жизни в стране, местные обычаи и еда, что удивило6 июля 2021
，这一点在91视频中也有详细论述
Netflix is “highly confident” about the regulatory process for the deal.。关于这个话题，safew官方下载提供了深入分析
Sign up for our Future Earth newsletter to keep up with the latest climate and environment stories with the BBC's Justin Rowlatt. Outside the UK? Sign up to our international newsletter here.