Ideal Home Life - online book

A valuable and well-organized system for home education(homeschooling) 3 to 12 years.

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340                          IDEAL HOME LIFE
operation a powerful shock will be felt. This shock may be regulated by slipping a piece of iron tubing about 7/8 of an inch inner diameter and 2 inches long on the coil. When the tube is all the way on, the shock is mild, and when off, the shock is strong. Intermediate strengths may be secured at stages between the two extremes.
Simple Motor
Figures 40 and 41 show the drawing of a simple and easily made electric motor which will run nicely on one dry battery.
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