03.17
Edison is highly lauded. Tesla is nearly forgotten.
Broadly speaking, Edison could be described as an innovator. He improved on existing technology. He did not invent the incandescent light bulb, for example.
That was patented and demonstrated publicly by Joseph Swam of Britain in 1878 — a year before Edison. Later, Swam and Edison formed a brief partnership and Edison bought him out.
Tesla, a native of Serbia, also began as an innovator. He wanted to be an electrical engineer. At that time, ?direct current? electricity was produced by chemical batteries charged by a steam-driven generator.
Direct current is affected by resistance in the wire conducting it. Within a mile or so, electricity is used up in the form of heat. At the University of Prague, Tesla was challenged to solve the distribution problem.
Tesla had a phenomenal memory. He memorized the complete works of Goethe and Voltaire. While strolling in a park, reciting poetry about the sun, Tesla suddenly perceived the direct-current solution.
An electric current that alternated from negative to positive could be sent in separate wires. At the receiving end, the two currents would be ?induced? to flow to separate magnets — one stationary, the other rotating like the sun.
Tesla patented his idea.
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