"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.
For now, the images capture a brief, dynamic moment in a star's death march, offering a rare peek at how its debris scatters through space, seeding future generations of stars and planets.
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A winding road to enter V86
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Parents opposing plans told they can home school their children if they object to sending them to state schools
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