"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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When it comes to chili, it doesn't get any bigger than Wendy's. This famous chili has something of a cult following. If you're a fan, you're probably well aware of National Chili Day and how Wendy's is planning to celebrate. If you're not fully up to speed just yet, you should know that you can grab a small portion of Wendy’s iconic chili on this special day. Here's how to qualify:
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