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<br /> <b>Warning</b>: mysqli_query(): (HY000/1194): Table 'wp_options' is marked as crashed and should be repaired in <b>/home/users/p/pulson717/domains/vizitron.ru/wp-includes/class-wpdb.php</b> on line <b>2431</b><br /> Что в вакууме упадет быстрее – тяжелый шар для боулинга или легкие перья?   vizitron


Что в вакууме упадет быстрее – тяжелый шар для боулинга или легкие перья?

Популяризатор науки Брайан Кокс (Brian Cox) провел для школьников эксперимент в самой большой вакуумной камере в мире, которую NASA использует для проверки космических кораблей в условиях приближенных к реальным. Камера содержит около 30 тонн воздуха, для откачки которого требуется целых 3 часа, после чего внутри остается всего 2 грамма воздуха и условия можно считать практически приближенными к идеальным.




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