Orange County NC Website
Browse       Search
DocuSign Envelope ID:8COC6AOF-56EE-46F5-A733-01 0A357A1 EFA <br /> 1800 Alexandra Volta Italy Made the first battery to store electricity <br /> I using alternating layers of zinc and copper. <br /> 1809 j Humphry Davy England Invented the first electric arc lamp using <br /> charcoal <br /> 1820 Hans Christian Denmark Demonstrated that magnetism and <br /> Oersted electricity are related by using an electric <br /> current to create a magnetic field._,__ <br /> �. _ _ _, __ M� ._�_m_ ..r . .__�. �_. . _. „ . ., . ,_ a._ �_ . ... .-. <br /> 1825 William Sturgeon England Invented the electro-magnet <br /> 1827 Andre-Marie France He built on the work of Oersted and came <br /> Ampere up with mathematical equations to <br /> understand electricity and magnetism. <br /> --------- ,.. . _ _. <br /> 1831 Michael Faraday England He discovered electricomagnetic induction <br /> and later invented the electric motor <br /> { 1 _ <br /> 1832 1 Pavel Schilling Germany _{_ Electric telegraph _ <br /> 1847 � Hermann von { Germany Energy cannot be created or destroyed, <br /> � Helmholtz <br /> only transformed. <br /> I _ <br /> 1856 Robert Houdin France A magnet that can be turned ON and OFF <br /> Algeria by electricity <br /> 1875 Herman Sprengel j Germany He invented the mercury vacuum pump. <br /> 1875 Henry Woodward f Canada Patented the first light bulb. <br /> Mathew Evans <br /> 1876 j Alexander i Scotland Bell was awarded the US patent for the <br /> j Graham Bell Canada telephone <br /> USA <br /> 1878 Joseph Swan England He created the first working light bulb using <br /> w (carbonized paper filaments <br /> 1879 { Thomas Edison New Jersey Invention of the incandescent light bulb. <br /> i U.S.A. <br /> 1888 George USA Established the "Westinghouse Electric & <br /> Westinghouse Manufacturing Company" to distribute AC <br /> current using several of Tesla's inventions. I <br /> 1897 '1 Sir Joseph John ( England I He discovered the electron and proposed a <br /> Thompson model for the structure of an atom. <br /> 1905 Albert Einstein Germany Published a paper on the "photoelectric" <br /> U.S.A effect. He won the Nobel Prize for this in <br /> 1921 <br /> 1918 Ernest New Zealand Discovered the proton <br /> Rutherford I England <br /> 1885-1943 Nikola Tesla Czechoslovak Tesla was a talented electrical engineer. <br /> is USA His most notable inventions include <br /> alternating current and the radio. <br /> 1931 ; Ernst Ruska Russia Is credited with developing the electron <br /> { microscope, which allows scientists to <br /> j magnify objects up to one million times. <br /> 1932 James Chadwick England Discovered the neutron and measured its <br /> i mass <br /> 1944 ; Otto Hahn Germany Nobel prize for chemistry. He uncovered the <br /> process of nuclear fission. <br /> 8 <br />