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How a Seismograph Works
Автор: Hiram Bertoch
Загружено: 2012-04-25
Просмотров: 1078464
Описание:
How a Seismograph Works
This video is part of a free science course for homeschool students. The labsheets, textbooks, quizzes, and other materials can be accessed 100% free of charge at http://www.HandsomeScienceTeacher.com
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