Answer: Thomas Edison
Thomas Edison was a bright and diligent inventor; He was also a cutthroat businessman who struggled dirty to protect his patents and subsequent royal money. Among his many achievements – invented a bulb with a long-term filament, carbon microphones and the first commercial fluoroscope – was the promotion of early electrical distribution networks based on DC.
Unfortunately, DC is a rather poor candidate compared to AC (AC) in broad distribution distribution because it is more difficult to transfer over long distances. The alternating current can be intensified into high voltages with transformers, transmitted over thinner and cheaper wires and then regulated at the destination. However, direct current can only be transmitted economically, about one and a half mile radius around the point of generation.
During the early US electricity distribution, Edison was a strong DC power controller over AC distribution. Opposite him were George Westinghouse and Nikola Tesla (promoter and inventor of the AC distribution system), respectively, as promoted alternating current as a more economical and practical method for achieving a wide-ranging power grid. Not one that would easily be discouraged (and not hurrying to lose their royalties money), Edison began what would later be known as the war of war.
How far would things escalate during the war of war? Edison tried to convince the public that AC power was lethal than DC. Technically, there is a marginally higher risk of cardiac arrest when exposed to alternating current but the whole thing is similar to argue that between two types of toxins one is more advisable to drink than the other direct contact with an electrical distribution system is never advisable. To this end, Edison employed technicians to electrolyt animals with alternating current to show how dangerous it was. Originally, the animals were small, stubborn cats and dogs, but things escalated quickly.
Edison found 1903 a perfect candidate to show the dangers of AC power. At the Coney Islands Luna Park there was an elephant called Topsy that slats out to be killed to kill three people – in fairness, one of the people killed by Topsy was his seriously abusive trader. Edison started a public execution of the animal where 6 600 volts of AC flowed through the elephant's body and killed it for seconds. It was a freakish scene. Decades later, Luna Park would burn to the ground, an event commonly called "Topsy's Revenge".
Animal cruelty was not the only part of Edison's widespread melting campaign on AC power (and at Westinghouse itself). Although Edison opposed the death penalty, he participated in the design of the first widely used electric chairs to control the engineers to use AC instead of DC. He then proceeded to try to inject "getting Westinghoused" for popular use to refer to being killed by electrocution. In the end, his efforts failed to discredit his opponents and the clean economy went out. Although small pockets of DC spread lasted as late as 2005 (in the form of a small business district in New York City that trust DC), even the small distribution centers have disappeared and the entire United States turns off alternating current. 19659003] Image Public Domain.