वर्ष | घटना |
---|
1600 | English scientist William Gilbert coined the word electricus after careful experiments. |
1705 | English scientist Francis Hauksbee made a glass ball that glowed when spun and rubbed with the hand |
1720 | English scientist Stephen Gray discovered insulators and conductors |
1745 | German physicist Ewald Georg von Kleist and Dutch scientist Pieter van Musschenbroek invented Leyden jars |
1752 | American scientist Benjamin Franklin showed that lightning was electrical by flying a kite, and explained how Leyden jars work |
1780 | Italian scientist Luigi Galvani discovered the Galvanic action in living tissue |
1783 | French physicist Charles-Augustin de Coulomb formulated Coulomb's law |
1785 | French mathematician Pierre-Simon Laplace developed the Laplace transform to transform a linear differential equation to an algebraic equation. Later, his transform became a tool in circuit analysis. |
1800 | Italian physicist Alessandro Volta invented the battery |
1816 | English inventor Francis Ronalds built the first working electric telegraph |
1820 | Danish physicist Hans Christian Ørsted accidentally discovered that an electric field creates a magnetic field |
1820 | One week after Ørsted's discovery, French physicist André-Marie Ampère published his law. He also proposed right-hand screw rule |
1821 | German scientist Thomas Johann Seebeck discovered thermoelectricity |
1825 | English physicist William Sturgeon developed the first electromagnet |
1827 | German physicist Georg Ohm introduced the concept of electrical resistance |
1831 | English physicist Michael Faraday published the law of induction (Joseph Henry developed the same law independently) |
1831 | American scientist Joseph Henry in United States developed a prototype DC motor |
1832 | French instrument maker Hippolyte Pixii in France developed a prototype DC generator |
1833 | Michael Faraday developed laws of electrolysis |
1833 | Michael Faraday invented thermistor |
1833 | English Samuel Hunter Christie invented Wheatstone bridge (It is named after Charles Wheatstone who popularized it) |
1836 | Irish priest (and later scientist) Nicholas Callan invented transformer in Ireland |
1837 | English scientist Edward Davy invented the electric relay |
1839 | French scientist Edmond Becquerel discovered the Photovoltaic Effect |
1844 | American inventor Samuel Morse developed telegraphy and the Morse code |
1845 | German physicist Gustav Kirchhoff developed two laws now known as Kirchoff's Circuit laws |
1850 | Belgian engineer Floris Nollet invented (and patented) a practical AC generator |
1855 | First utilization of AC (in electrotherapy) by French neurologist Guillaume Duchenne |
1856 | Belgian engineer Charles Bourseul proposed telephony |
1856 | First electrically powered light house in England |
1860 | German scientist Johann Philipp Reis invented Microphone |
1862 | Scottish physicist James Clerk Maxwell published four equations bearing his name |
1866 | Transatlantic telegraph cable |
1873 | Belgian engineer Zenobe Gramme who developed DC generator accidentally discovered that a DC generator also works as a DC motor during an exhibit in Vienna. |
1876 | Russian engineer Pavel Yablochkov invented electric carbon arc lamp |
1876 | Scottish inventor Alexander Graham Bell invented telephone |
1877 | First street lighting in Paris, France |
1877 | American inventor Thomas Alva Edison invented phonograph |
1877 | German industrialist Werner von Siemens developed primitive loud speaker |
1878 | First hydroelectric plant in Cragside, England |
1878 | English engineer Joseph Swan invented Incandescent light bulb |
1879 | American physicist Edwin Herbert Hall discovered Hall Effect |
1879 | Thomas Alva Edison introduced a long lasting filament for the incandescent lamp. |
1880 | French physicists Pierre Curie and Jacques Curie discovered Piezoelectricity |
1882 | First thermal power stations in London and New York |
1883 | English physicist J J Thomson invented waveguides |
1887 | German American inventor Emile Berliner invented gramophone record |
1888 | German physicist Heinrich Hertz proved that electro magnetic waves travel over some distance. (First indication of radio communication) |
1888 | Italian physicist and electrical engineer Galileo Ferraris publishes a paper on the induction motor and Serbian-American engineer Nikola Tesla gets a US patent on the same device[3][4] |
1890 | Thomas Alva Edison invented fuse |
1893 | During the Fourth International Conference of Electricians in Chicago electrical units were defined |
1894 | Russian physicist Alexander Stepanovich Popov developed a prototype of a radio receiver |
1896 | First successful intercontinental telegram |
1897 | German inventor Karl Ferdinand Braun invented cathode ray oscilloscope (CRO) |
1900 | Italian inventor Guglielmo Marconi succeeded in first radio broadcast |
1901 | First transatlantic radio broadcast by Guglielmo Marconi |
1901 | American engineer Peter Cooper Hewitt invented Fluorescent lamp |
1904 | English engineer John Ambrose Fleming invented diode |
1906 | American inventor Lee de Forest invented triode |
1908 | Scottish engineer Alan Archibald Campbell-Swinton, laid the principles of Television. |
1911 | Dutch physicist Heike Kamerlingh Onnes discovered Superconductivity |
1912 | American engineer Edwin Howard Armstrong developed Electronic oscillator |
1915 | French phyisicist Paul Langevin and Russian engineer Constantin Chilowsky invented sonar |
1917 | American engineer Alexander M. Nicholson invented crystal oscillator |
1918 | French physicist Henri Abraham and Eugene Bloch invented multivibrator |
1919 | Edwin Howard Armstrong developed standard AM radio receiver |
1921 | Metre Convention was extended to include the electrical units |
1925 | Austrian American engineer Julius Edgar Lilienfeld patented the first FET (which became popular much later) |
1926 | Yagi-Uda antenna was developed by the Japanese engineers Hidetsugu Yagi and Shintaro Uda |
1927 | American engineer Harold Stephen Black invented negative feedback amplifier |
1927 | German Physicist Max Dieckmann invented Video camera tube |
1928 | First experimental Television broadcast in the US. |
1929 | First public TV broadcast in Germany |
1931 | First wind energy plant in the Soviet Union |
1936 | Dudley E. Foster and Stuart William Seeley developed FM detector circuit. |
1936 | Austrian engineer Paul Eisler invented Printed circuit board |
1936 | Scottish Scientist Robert Watson-Watt developed the Radar concept which was proposed earlier. |
1938 | Russian American engineer Vladimir K. Zworykin developed Iconoscope |
1939 | Edwin Howard Armstrong developed FM radio receiver |
1939 | Russell and Sigurd Varian developed the first Klystron tube in the US. |
1941 | German engineer Konrad Zuse developed the first programmable computer in Berlin |
1944 | Scottish Engineer John Logie Baird developed the first color picture tube |
1945 | Transatlantic telephone cable |
1947 | American engineers John Bardeen and Walter Houser Brattain together with their group leader William Shockley invented transistor. |
1948 | Hungarian-British physicist Dennis Gabor invented Holography |
1950 | French physicist Alfred Kastler invented MASER |
1951 | First nuclear power plant in the US |
1953 | First fully transistorized computer in the US |
1958 | American engineer Jack Kilby invented the integrated circuit (IC) |
1960 | American engineer Theodore Harold Maiman invented the LASER |
1962 | Nick Holonyak Jr. invented the LED |
1963 | First home Videocassette recorder (VCR) |
1963 | Electronic calculator |
2008 | American scientist Richard Stanley Williams invented memristor which was proposed by Leon O. Chua in 1971 |