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Why is seawater salty? What causes volcanoes to erupt? Why don't man-made satellites fall from the sky? What makes people sleepy? Answers to these questions and more are in this animated title which explores topics of nature, customs, and technology.
April 7, 1984
1
100
TBS
1 person
Naomi Matsui
お姉さん
Acting
No episodes available for this season.
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