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Lighting
Benjamin Franklin conducted an experiment with a key tied to a kite in the middle of a lighting storm -
Bioelectricty
Luigi Aloisio Galvani studied bioelectricity, a field that still today studies the electrical patterns and signals of the nervous system. -
Heat engine
Nicolas Léonard Sadi Carnot developed the Carnot heat engine that is the basic theoretical model for all heat engines. -
Electric Motor
William Sturgeon invented the electric motor. -
Fuel cell
Sir William Robert Grove developed the first fuel cell by combining hydrogen and oxygen. -
Electric Telegraph
Samuel Morse invented the electric telegraph, a machine that people used to get messages across America by a wire. -
lightbulb
After many experiments, Thomas Edison invented an incandescent light bulb that could be used close to 40 hours without burning out. -
Ruby Laser
The ruby laser was invented by Theodore H. White. -
Battery
Alessandro Volta invented the electric battery. -
Geothermal energy
The Geothermal Energy Association includes U.S. companies that develop geothermal resources worldwide for electrical power generation.