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.
党中央决定，在全党开展树立和践行正确政绩观学习教育。习近平总书记反复强调要树立和践行正确政绩观，近期又在多次重要讲话中特别加以强调，为开展学习教育指明了方向、提供了重要遵循。
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Microbiologists have been growing microbes on agar plates for nearly 150 years, but agar’s discovery dates back to a happy accident in a mid-17th-century kitchen. Legend has it that on a cold winter day, a Japanese innkeeper cooked tokoroten soup, a Chinese agar seaweed recipe known in Japan for centuries. After the meal, the innkeeper discarded the leftovers outside and noticed the next morning that the sun had turned the defrosting jelly into a porous mass. Intrigued, the innkeeper was said to have boiled the substance again, reconstituting the jelly. Since this discovery, agar has become a staple in many Japanese desserts, from yokan to anmitsu.
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Ранее дачников предупредили о нашествии вредителей на участках в 2026 году. Речь идет о мухе-горбатке, азиатской ягодной дрозофиле и южном зеленом клопе родом из Африки.