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29:15
Звёзды
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11 years ago
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Астрономия, астрофизика, космология
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13,250 views
29:30
Звёздное небо
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11 years ago
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Астрономия, астрофизика, космология
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13,690 views
28:53
Галактики
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11 years ago
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Астрономия, астрофизика, космология
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13,012 views
30:19
Астрономия и космона...
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11 years ago
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Астрономия, астрофизика, космология
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12,981 views
49:32
Марс
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11 years ago
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Астрономия, астрофизика, космология
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14,531 views
50:25
Тайна вещества
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11 years ago
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Атомная физика
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12,872 views
9:44
Метеориты
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11 years ago
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Астрономия, астрофизика, космология
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14,513 views
51:01
Луна
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11 years ago
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Астрономия, астрофизика, космология
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12,841 views
49:00
Дорога к звездам
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11 years ago
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Астрономия, астрофизика, космология
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13,719 views
16:17
Вижу Землю
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11 years ago
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Планета Земля
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14,078 views
17:16
Язык химии
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11 years ago
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Основы химии
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13,583 views
18:41
Энергетика Химически...
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11 years ago
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Основы химии
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7,983 views
19:49
Химия вокруг нас
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11 years ago
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Основы химии
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12,909 views
17:45
Строение атома
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11 years ago
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Основы химии
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8,609 views
29:09
Периодический закон...
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11 years ago
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Основы химии
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13,138 views
9:24
Периодический Закон...
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11 years ago
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Основы химии
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8,163 views
9:22
Периодический Закон...
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11 years ago
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Основы химии
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8,133 views
9:47
Периодический Закон...
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11 years ago
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Основы химии
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7,854 views
19:03
Общие свойства раств...
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11 years ago
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Основы химии
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8,063 views
18:39
Общие свойства P-эле...
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11 years ago
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Основы химии
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8,533 views
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