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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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13,234 views
29:30
Звёздное небо
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11 years ago
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Астрономия, астрофизика, космология
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13,678 views
28:53
Галактики
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11 years ago
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Астрономия, астрофизика, космология
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13,002 views
30:19
Астрономия и космона...
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11 years ago
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Астрономия, астрофизика, космология
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12,972 views
49:32
Марс
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11 years ago
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Астрономия, астрофизика, космология
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14,522 views
50:25
Тайна вещества
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11 years ago
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Атомная физика
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12,861 views
9:44
Метеориты
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11 years ago
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Астрономия, астрофизика, космология
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14,503 views
51:01
Луна
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11 years ago
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Астрономия, астрофизика, космология
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12,825 views
49:00
Дорога к звездам
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11 years ago
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Астрономия, астрофизика, космология
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13,708 views
16:17
Вижу Землю
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11 years ago
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Планета Земля
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14,067 views
17:16
Язык химии
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11 years ago
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Основы химии
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13,573 views
18:41
Энергетика Химически...
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11 years ago
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Основы химии
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7,976 views
19:49
Химия вокруг нас
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11 years ago
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Основы химии
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12,898 views
17:45
Строение атома
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11 years ago
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Основы химии
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8,603 views
29:09
Периодический закон...
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11 years ago
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Основы химии
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13,127 views
9:24
Периодический Закон...
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11 years ago
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Основы химии
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8,156 views
9:22
Периодический Закон...
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11 years ago
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Основы химии
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8,127 views
9:47
Периодический Закон...
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11 years ago
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Основы химии
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7,848 views
19:03
Общие свойства раств...
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11 years ago
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Основы химии
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8,054 views
18:39
Общие свойства P-эле...
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11 years ago
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Основы химии
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8,527 views
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