From Electrostatics to Optics: A Concise Electrodynamics Course

We live in the electronic age. Millions of people stare at television sets; computers penetrate our working life; and the heartbeat of many older people is regulated by a pace-maker. Even music is becoming electric. The good old mechanical Swiss watch has meanwhile been replaced by an electronic watch made in Hong Kong, which is ten times as accurate and costs a tenth of the price. (The cheap Swiss watches are today also electric and the parts are probably made in Hong Kong. ) In physics, t...