Nature, Published online: 03 March 2026; doi:10.1038/d41586-026-00680-z
Раскрыты подробности о договорных матчах в российском футболе18:01
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Раскрыта самая популярная в России мошенническая схемаМВД: Мошенники чаще всего предлагают заменить домофон
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But there are two key differences. First, we have a different coefficient, μk. This is always less than the coefficient of static friction, μs, so kinetic friction is lower. (This is why cars have antilock brakes: If you keep the wheels from locking up and skidding, you can stop in a shorter distance.) As an example, when two steel surfaces interact (like a train car wheel on a track), the coefficient of static friction would be 0.74, but the coefficient of kinetic friction would be 0.57.
Jones suggests that, although the 80-page notebook suggests that "he starts off really trying hard", as you keep turning the pages Geisel's doodles "start to take up more and more of the notebook".，详情可参考新收录的资料