Publisher description:
A book of practical, easy projects that help readers discover, and thus understand, some of the principles of electricity and how it works.
Seeing a coil of wire and a magnet set up an electric current, or building a switch, or electroplating a nail are experiences important to learning.
Simple, graphic, step-by-step instructions make it easy to build a hot dog cooker, a teaching machine, a light bulb, a burglar alarm, a telegraph set, an electric bell, an electric motor, and many other things.
Most of the materials used in these projects are simple things that are found around the home.
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