20:14, 27 февраля 2026Путешествия
"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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她的记忆更为具体而惊心。子弹飞过街道，全家人用厚重的布匹挡住大门，蜷缩在客厅后面房间的床底。待扫射的喧嚣过去，战战兢兢地查看，大门上已布满弹孔。
Раскрыты подробности похищения ребенка в Смоленске09:27