осмий

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09.09.2009 (0:55) Естественные науки >> Физика
Твердость обычного и гексагонального алмаза больше не будет эталоном
Согласно новой теории, предложенной чешскими учеными, твердость кристалла объясняется силой молекулярных связей, направленных перпендикулярно, а не параллельно приложенному усилию. Такая модель открывает путь к созданию уникальных по своей твердости материалов.С ...>>


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