Earlier research has suggested that 10% of aerosols in the atmosphere are already contaminated by space debris.
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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.，推荐阅读旺商聊官方下载获取更多信息
从这个意义上看，转型并不是一次简单的商业模式切换，而是一场关于平台角色的重塑。