"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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New-ish year, new Samsung phones. Let's deal with the out-and-out bad news first. The S26 and S26+ are each $100 more expensive than their predecessors (the RAM shortage isn't exactly helping to keep prices down). They start at $900 and $1,100, respectively, for variants with 256GB of storage.，更多细节参见搜狗输入法2026
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