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George Ohm
He discovered the relationship between power, voltage, resistence, and current. -
First Electric Motor
Thomas Davenport invented the electric motor, an invention that is used in most electrical appliances today. -
First Rechargeable Battery
Gaston Plante invents the lead-acid battery, which is the first commercial rechargeable electric battery -
Incandescent Lighbulb
Joseph Swan, an Englishman, invented the first incandescent lightbulb -
First Hydroelectric Power Plant
On September 30, 1882, the world's first hydroelectric power plant began operation on the Fox River in Appleton, Wisconsin. The plant, later named the Appleton Edison Light Company, was initiated by Appleton paper manufacturer H.J. Rogers, who had been inspired by Thomas Edison's plans for an electricity-producing station in New York. -
First AC system
Electric air conditioning, invented by W. Carrier -
"New Deal"
The Roosevelt Administration passed the "New Deal" legislation (to help regulate public utilities and bring electricity to rural America.) -
First Electric Wind Turbine
The first wind turbine, planted in the West, it was decommissioned after an accident in 1945, but until then, it had operated for over 1,100 hours. -
First Controlled Nuclear Reaction
Dr. Enrico Fermi achieves the first controlled nuclear chain reaction with the first demonstration reactor—the Chicago Pile 1. -
Modern Solar Cell
Bell Labs announces the invention of the first moder silicon solar cell. It is presented at the National Academy of Science Meeting