"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 roughly the first decade of the "cash machine," they were offline devices
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Valencia GP — Nov. 22
Pakistan says it has "conclusive evidence" that TTP has been behind a series of attacks in the country, including the recent suicide bombing of a Shia mosque in Islamabad in which more than 30 people were killed. IS claimed to be behind the Islamabad attack, but Pakistan has said it has "conclusive evidence" the TTP is behind it.
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