Thomas Edison suggested for Edison's anti-AC stance. One notion is that the inventor could not grasp the more abstract theories behind AC and was trying to avoid developing a system he did not understand. Edison also appeared to have been worried about the high voltage from misinstalled AC systems killing customers and hurting the sales of electric power systems in general. Primary was the fact that Edison Electric based their design on low voltage DC and switching a standard after they had installed over 100 systems was, in Edison's mind, out of the question. By the end of 1887, Edison Electric was
Thomas Edison years to treat a variety of causes, and researchers believe that her symptoms could have been from morphine poisoning. Edison generally preferred spending time in the laboratory to being with his family. On February 24, 1886, at the age of thirty-nine, Edison married the 20-year-old Mina Miller (1865–1947) in Akron, Ohio. She was the daughter of the inventor Lewis Miller, co-founder of the Chautauqua Institution, and a benefactor of Methodist charities. They also had three children together: Mina outlived Thomas Edison, dying on August 24, 1947. Wanting to be an inventor, but not having much of an aptitude for it,