Physics of the Life Sciences by Jay Newman

Author:Jay Newman
Language: eng
Format: epub
Publisher: Springer US, New York, NY

14.1 Electric Charge and Charge Conservation

Humankind’s first contact with electricity was through electrical storms and bolts of lightning hurled from the heavens with the power to kill or create fire (Figure 14.1 ). The Greeks discovered manmade static electricity, produced by friction, just as we know it today. Frizzy hair charged up by combing on a dry day and electrical sparks produced when touching a metal doorknob after walking on a thick carpet are common examples of static electricity buildup through friction. It is only in the 20th century that we have learned that these macroscopic phenomena are due to the elementary charged particles, electrons and protons, making up all atoms.

Figure 14.1Lightning strikes.

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