Winch, Ralph P. Formerly, Department of Physics, Williams College, Williamstown, Massachusetts.
- Additional Readings
A basic property of elementary particles of matter. One does not define charge but takes it as a basic experimental quantity and defines other quantities in terms of it. The early Greek philosophers were aware that rubbing amber with fur produced properties in each that were not possessed before the rubbing. For example, the amber attracted the fur after rubbing, but not before. These new properties were later said to be due to “charge.” The amber was assigned a negative charge and the fur was assigned a positive charge.
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