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Holladay on Radio Waves & Electromagnetism

Aug 2nd, 2007
by fadingad.

© USA Today
Why radio waves shine through paper but not light

© Macmillan

Iron filings aligned by a bar magnet’s field.
Courtesy of Practical Physics, published in 1914 by Macmillan and Company

Posted in: Curriculum Development, Science Education, Technology.

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