"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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As is typical, Apple hasn't officially confirmed what products will be released at the event, but rumors point to three very specific possibilities: an iPhone 17e, a new iPad Air, and new MacBooks. For the MacBooks, rumor has it Apple will be releasing a souped-up MacBook Pro with a new M5 Pro chip, a budget MacBook with a touchscreen display, or both, or neither. A more affordable MacBook could completely tip the balance of the budget laptop market in Apple's favor, and if I made Windows laptops, I'd be worried right now.
[3]《刘强东称已接到5条大型游艇订单，每艘平均卖6000万欧元》界面新闻