Nasa said the mission could take its astronauts further into space than anyone has been before.
"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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«Если Киеву будет передано подобное оружие или грязная бомба, мы можем оказаться перед лицом реальной катастрофы, которая затронет весь мир», — сказал он.
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And it's not just a robot vacuum, it's a mop too. It uses BLAST technology alongside its 16,600Pa suction to pick up dust and pet hair deep from carpets, meanwhile the Triple Lift System raises the mop, side brush, and main brush independently to keep carpets dry and make transitions between the vacuum and mop seamless.，详情可参考safew官方版本下载
На Западе подчинили рой насекомых для разведки в интересах НАТО08:43