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Ancient Greek philosopher Thales of Miletus described static electricity by rubbing fur on substances such as amber. 1600: English scientist William Gilbert coined the word electricus after careful experiments. He also explained the magnetism of Earth. 1660: German scientist Otto von Guericke invented a device that creates static electricity ...
The invention of the industrial generator in 1866 by Werner von Siemens – which did not need external magnetic power – made a large series of other inventions possible. In 1873, James Clerk Maxwell published a unified treatment of electricity and magnetism in A Treatise on Electricity and Magnetism which stimulated several theorists to ...
Volta's inventions led to revolutionary changes with this method of the production of inexpensive, controlled electric current vs. existing frictional machines and Leyden jars. The electric battery became standard equipment in every experimental laboratory and heralded an age of practical applications of electricity.
1954: Invention of the solar battery by Bell Telephone scientists, Calvin Souther Fuller, Daryl Chapin and Gerald Pearson capturing the Sun's power. First practical means of collecting energy from the Sun and turning it into a current of electricity. 1955: The hovercraft is patented by Christopher Cockerell.
Hungarian, physicist and unsung father of the dynamo and electric motor; invented the first commutated rotary electromechanical machine with electromagnets. [ 3 ] [ 5 ] He invented the commutator . In 1828, Jedlik demonstrated the first device to contain the three main components of practical DC motors: the stator , rotor and commutator.
From the first Apple computer to the COVID-19 vaccine, here are the most revolutionary inventions that were born in the U.S.A. in the past half-century.
The invention builds on acetylene lamps from the 1890s. 1901 Peter Cooper Hewitt creates the first commercial mercury-vapor lamp. 1904 Alexander Just and Franjo Hanaman invent the tungsten filament for incandescent lightbulbs. 1910 Georges Claude demonstrates neon lighting at the Paris Motor Show. 1912 Charles P. Steinmetz invents the metal ...
On this day in economic and business history... On Oct. 21, 1987, a mere two days after suffering the worst crash in its history, the Dow Jones Industrial Average posted a then-record gain of 186. ...