Cambridge University Press Cambridge Factbooks 4 Why Do Magnets Attract?
Publikace: 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 Magn - McMahon, Michael. Anotace: Zjednodušená četba pro děti ...a dál?