High-speed imaging reveals that the squeak of soft–rigid frictional interfaces, like sneakers sliding on a basketball court, arises from intersonic opening slip pulses—analogous to earthquake ruptures—that thin ridges on the rubber confine to repeat at a musical frequency.
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Last year, the Marine Conservation Society said mackerel was "under immense pressure from fishing activities across multiple nations" and that the stocks would soon be unable to replenish naturally.，详情可参考WPS官方版本下载
Ранее в феврале издание Defense One писало, что Sentinel выпустят не ранее 2030-х годов. Программа создания ракеты может перейти на этап проектирования и производства в 2027 году.