"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.
"The message that we delivered, in no uncertain terms, was that we have an expectation that there are going to be changes implemented, and if they're not forthcoming very quickly, the government is going to be making changes," Justice Minister Sean Fraser said of the company and its AI chatbot. It's unclear what those government-led changes or rules might be. There have been two previous, unsuccessful attempts to pass an online harms act in Canada.
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Reddit has preserved "human authenticity" says Jen Wong