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Wednesday, January 9, 2013

Electrical Inventions and Inventors



Inventor Contribution


William Gilbert              1544 - 1603   investigated magnetism & static electricity
Otto von Guericke         1602 - 1686 invented first electrostatic generator
Francis Hauksbee          1666 - 1713 studied electrostatic repulsion, first mercury vapor light
Emilie du Chatelet         1706 - 1749 studied infrared emission & measured conservation     of energy (leading towards E=MC² equation)

Benjamin Franklin         1706 - 1790 studied electrical charges & labeled them "positive" & "negative", and a whole lot more!

Luigi Galvani                  1737 - 1798        discovered electrical effects between different metals, and in biological cells

Alessandro Volta            1745 - 1827 developed the forerunner of the electric battery
André Marie Ampère 1775 - 1836 established a measurable relationship between electricity and magnetism

Hans Christian Oersted 1777 - 1851      developed experiments in electromagnetism
Carl Friedrich Gauss 1777 - 1855         experimented with electrical charges and magnetism, and established a method for measuring magnetic fields

Georg Simon Ohm             1789 - 1854          his work led to the mathematical relationship between voltage, current, and resistance called "Ohm's Law"

Michael Faraday                1791 - 1867 developed measurement methods in capacitance & electromotive force

Joseph Henry                    1797 - 1878 discovered electromagnetic self-inductance, and invented the electromagnetic relay - leading to the telegraph. the henry, or H, is a unit of inductance

James Prescott Joule        1818 - 1889         developed theories on conservation of energy, thermodynamics, and resistance heating

Sir William Thompson       1824 - 1907 (a.k.a. Lord Kelvin) studied thermodynamics & proposed an absolute temperature scale

James Clerk Maxwell        1831 - 1879   developed a set of differential equations known as "maxwell's Equations", which describe electromagnetic radiation and its interaction with matter

Alexander Graham Bell    1847 - 1922 one of several inventors of the telephone. also invented the photophone which transmitted sound over light waves

Thomas A. Edison             1847 - 1931  not enough room here!   (click to read)

Nikola Tesla                     1856 - 1943  developed an alternating current system of generators, motors, and transmission lines - the same system we use today! also a whole lot more that's still ahead of its time!

Heinrich Hertz                   1857 - 1894               best known for the hertz, or Hz. (a unit of frequency), he also made discoveries in electromagnetic transmission and the photoelectric effect, and developed the spark-gap transmitter and dipole antenna

Lee de Forest                       1873 - 1961    invented the audion vacuum tube which amplified weak electric signals

Guglielmo Marconi               1874 - 1937         built upon earlier ideas and patents to develop a widely used radio system

Philo Farnsworth               1906 - 1971         An American inventor considered to be the father of the television system

William Shockley                   1910 - 1989         co-invented the solid-state transistor with John Bardeen and Walter Brattain, leading to the creation of Silicon Valley

Jack Kilby                        1923 - 2005          patented the first integrated circuit while at Texas Instruments, then later patented the portable calculator

Robert Noyce                        1927 - 1990            further developed the integrated circuit to include more transistors on a silicon substrate

Gordon Moore born              1929 co-founded Intel in 1968 & known for "Moore's Law" which observes that integrated circuit complexity doubles every 2 years

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