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500
First Windmills
The first windmills were used by the persians for pumping water and grinding grain. -
Coal Discovered
Coal was discovered near Richmond, Virginia -
Ben Franklin
Benjamin Franklin discovered electricity with his experiment using kites and keys. -
Batteries
First battery was introduced by Alessandro Volta. -
Electric Motors
The electric motor was invented by Thomas Davenport. Common in almost all appliances. -
Oil
Edwin Drake was the first to drill for oil in the United States. Today oil is one of the most popular sources of energy. -
Light Bulb
Thomas Edison invented the incandascentlight bulb. -
Wind Turbine
First wind turbine built in the US by Charles F. Brush in Cleveland, Ohio. -
Hoover Dam
The Hoover Dam was completed in Nevada. It is one of the largest sources of hydroelectricity in the world. -
Solar Energy
William Cobb invented the first solar powered car "sunmobile".