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1880
The first commercial installation of American inventor Thomas Edison's electric lighting system occurs, successfully providing light to the steamship Columbia. -
1882
The first hydroelectric power station is founded in Appleton, Wisconsin. -
1888
The first AC hydroelectric power plant is established in Oregon City, Oregon -
1895
The first large-scale hydroelectric power plant, located in North America at Niagara Falls, begins delivering power. -
1896
French physicist Antoine-Henri Becquerel first observes natural radioactivity -
1897
J.J. Thomson carries out several experiments that lead him to conclude that cathode rays consist of a stream of negatively charged particles much smaller than an atom, dispelling the long-held belief that the atom was indivisible. -
1899
Waldmar Jungner of Sweden develops the rechargeable nickel-cadmium battery. -
1900
French husband-and-wife physicists Pierre and Marie Curie produce evidence that beta rays are a form of radiation identical to cathode rays.
German physicist Max Planck introduces his radiation law, the fundamental physical constant that bears his name, and his concept of energy quanta. German physicist Max Planck introduces his radiation law, the fundamental physical constant that bears his name, and his concept of energy quanta.