4092161
9781403472830
Switches are marvelous things - they control the most useful and convenient form of energy in our modern world, electricity. By powering machines and devices it turns night into day, stillness into motion, silence into sound and cold into hot - or the other way around. Yet electricity itself is invisible, so we study the science of it by its effects.Parker, Steve is the author of 'Science of Electricity & Magnetism Projects and Experiments With Electricity And Magnets', published 2005 under ISBN 9781403472830 and ISBN 1403472831.
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