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07.04.2011 (8:11) Естественные науки >> Физика
Можно ли закричать так, чтобы никто не услышал?
Последние теоретические работы ученых из Австрии, опубликованные в журнале Physical Review Letters, показывают, что теоретически можно отправить звук в комнате от одного человека другому так, чтобы посторонний не смог услышать передачу. Определенные условия заставляют звук в этом ...>>


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