Michael McMahon: Why Do Magnets Attract?
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Жанр : Cambridge University Press
Издательство : Cambridge University Press
Год издания : 2010
Аннотация:
A series of twenty non-fiction science readers which engages children in the world around them. What is magnetism? What is a magnetic field? What are a magnet's poles? You can find the answers to these and other questions about magnets in Why Do Magnets Attract?