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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.
Runtime: 30:14 minutes
Release: Jan 01, 1970
IMDb: 0.00/10 by 0.00 users
Popularity: 13.459
Country: Japan
Language:
Budget: 0
Revenue: 0
Keyword : anime
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