When he was young, he became famous and invented the great alternating current. However, it was ruthlessly suppressed by the then DC operator Edison. Although nikola tesla devoted himself to continuous research all his life and obtained about 1000 patent inventions, his lifelong research was not for his own benefit. Unfortunately, his contemporary entrepreneurs, including Edison, who we know well, took advantage of this talented scientist's love and talent, defrauded his research achievements and honors, and became rich because of his inventions. But Tesla has been down and out and has been financially strapped for many years. 194365438+1sometime between the evening of October 5th and the morning of October 8th, Tesla died of heart failure alone in new york Hotel at the age of 86. Tesla was heavily in debt when he died because he refused to sell his patent for alternating current.