ELECTRICAL ENCYCLOPEDIA

Did you know that pioneers of both AC and DC technologies once work together in the same laboratory? Thomas Edison and Nikola Tesla started the "Electricity War" just because Edison turned down the idea of Tesla. This war was not purely because of clash of minds but more likely from economic and business point of view. The History Channel presentation of the series "The Men Who Built America" narrates the start of the war between the Direct Current of Edison and Alternating Current of Tesla. Edison was supported by JP Morgan while Nikola Tesla was supported by Westinghaus. Watch the video below to understand more the root cause of the conflict and who prevailed in the end. Men Who Built America Part3 Changing The Game

Who is Heinrich Rudolf Hertz?   Heinrich Rudolf Hertz (February 22, 1857 – January 1, 1894) was a German physicist who clarified and expanded the electromagnetic theory of light that had been put forth by Maxwell. He was the first to conclusively prove[1] the existence of electromagnetic waves by engineering instruments to transmit and receive radio pulses using experimental procedures that ruled out all other known wireless phenomena. continue.. Heinrich Rudolf Hertz as an Inventor   His name also became the term used for radio and electrical frequencies: hertz (Hz), as in kilohertz (kHz) or megahertz (MHz). The hertz designation has been an official part of the international metric system since 1933. Before Hertz gained professorships in Karlsruhe and Bonn, he had studied under the famous scientist Hermann von Helmholtz in Bonn, and it was Helmholtz who encouraged Hertz to attempt to win the science prize that led to some of Hertz's most important discoveries. From 1885 ...

Coulomb's law http://en.wikipedia.org   Coulomb's law or Coulomb's inverse-square law, is a law of physics describing the electrostatic interaction between electrically charged particles. It was studied and first published in 1783 by French physicist Charles Augustin de Coulomb and was essential to the development of the theory of electromagnetism. Nevertheless, the dependence of the electric force with distance had been proposed previously by Joseph Priestley and the dependence with both distance and charge had been discovered, but not published, by Henry Cavendish, prior to Coulomb's works. Charles Augustin de Coulomb http://www-groups.dcs.st-and.ac.uk   Charles Augustin Coulomb's father was Henry Coulomb and his mother was Catherine Bajet. Both his parents came from families which were well known in their fields. His father's family were important in the legal profession and in the administration of the Languedoc region of France, and his mother's family...

Lenz law http://en.wikipedia.org   Currents bound inside the atoms of strong magnets can create counter-rotating currents in a copper or aluminum pipe. This is done by dropping the magnet through the pipe. When done, the descent of the magnet is observably slower than when dropped outside the pipe. Lenz law Article http://www.wbabin.net   In electromagnetism, Lenz’s law states that the direction of an induced electric current is such as to oppose the change that causes it. Lenz’s law would therefore appear to be closely related to the law of conservation of energy, apart from the fact that it operates in conjunction with non-conservative forces. It will now be shown that Lenz’s law is a manifestation of the ongoing transfusion of aether between the positron sources and the electron sinks of the luminiferous medium. Energy in the form of pressurized aether is drawn up from the luminiferous medium by a pumping mechanism which sometimes resembl...

Farad (unit) http://en.wikipedia.org/wiki/Farad   A farad is the charge in coulombs which a capacitor will accept for the potential across it to change 1 volt. A coulomb is 1 ampere second. Example: A 47 mA current causes the voltage across a capacitor to increase by 1 volt per second. It therefore has a capacitance of 47 mF. It has the base SI representation of s4·A2·m−2·kg−1. Further equalities follow:  Farad Definition http://www.thefreedictionary.com/farad   The unit of capacitance in the meter-kilogram-second system equal to the capacitance of a capacitor having an equal and opposite charge of 1 coulomb on each plate and a potential difference of 1 volt between the plates. See Table at measurement. History of Farad http://americanproxy.org/   The Farad was coined by Josiah Latimer Clark in the year of 1861, in honor of Michael Faraday, but it was for a unit of quantity of charge. Values of capacitors are usually specified in ranges of farads (F), microfar...