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Topic: War of Currents


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In the News (Sun 22 Nov 09)

  
  War of Currents - Wikipedia, the free encyclopedia
During the initial years of electricity distribution, Edison's direct current was the standard for the United States and Edison was not disposed to lose all his patent royalties.
The direct current electric power transmission system had severe limitations that were solved by the use of alternating current.
When Tesla introduced a system for alternating current generators, transformers, motors, wires, and lights in November and December of 1887, it became clear that AC was the future of electric power distribution.
en.wikipedia.org /wiki/War_of_Currents   (1658 words)

  
 War of Currents - Definition, explanation
In the "'War of Currents\'" era in the late 1880s, Nikola Tesla and Thomas Edison became adversaries due to Edison's promotion of direct current (DC) for electric power distribution over the more efficient alternating current (AC) advocated by Tesla.
When Tesla introduced alternating current after filing seven patents for alternating current generators, transformers, motors, wires, and lights in November and December of 1887, it became clear that AC was the future of electric power distribution.
Most important, alternating current could be easily manipulated with a transformer to change voltage and current.
www.calsky.com /lexikon/en/txt/w/wa/war_of_currents.php   (1438 words)

  
 Direct current: Facts and details from Encyclopedia Topic   (Site not responding. Last check: 2007-10-08)
An alternating current (ac) is an electrical current, where the magnitude and direction of the current varies cyclically, as opposed to direct current,...
In the "war of currents" era in the late 1880s, nikola tesla and thomas edison became adversaries due to edisons promotion of direct current (dc) for...
A current source is a device that delivers or absorbs electrical energy such that the electrical current is independent of the voltage across its terminals....
www.absoluteastronomy.com /encyclopedia/d/di/direct_current.htm   (1661 words)

  
 Articles - War of Currents   (Site not responding. Last check: 2007-10-08)
The direct current electric power transmission system had limitations that were solved by the use of alternating current.
Transmission of electric power by direct current became commercially significant again in the context of high voltage direct current systems, used for bulk transmission of energy from distant generating stations or for interconnection of separate alternating-current systems.
Direct current systems are still used in vehicles for lighting, ignition, and battery charging, and in small isolated plants powered by solar power or some micro-hydro and small wind turbines.
www.centralairconditioners.net /articles/War_of_Currents   (1350 words)

  
 Learn more about Thomas Edison in the online encyclopedia.   (Site not responding. Last check: 2007-10-08)
During the commonly referred to "War of Currents" era, Austrian immigrant Nikola Tesla and Edison became adversaries due to Edison's promotion of DC for electric power distribution over the more efficient alternating current advocated by Tesla, who patented AC in Graz, Austria.
Ironically, Edison was against capital punishment, but his desire to disparage the superior system of alternating current led to the invention of one of the world's most recognizable killing devices.
George Westinghouse developed alternating current distribution, which could be used to transmit electricity over longer distance than Edison's direct current due to the ability to transform the voltage.
www.onlineencyclopedia.org /t/th/thomas_edison.html   (2276 words)

  
 Learn more about Nikola Tesla in the online encyclopedia.   (Site not responding. Last check: 2007-10-08)
The scientific compound derived SI unit measuring magnetic flux density or magnetic induction (commonly known as the magnetic field B), the tesla, was named in his honor (at the Conference general des poids et mesures, Paris, 1960).
During this time, direct current was the standard, and Edison was not disposed to lose all his patent royalties to a former employee.
Tesla believed that war could not be avoided until the cause for its recurrence is removed.
www.onlineencyclopedia.org /n/ni/nikola_tesla.html   (5775 words)

  
 2001 Pulitzer Prizes-INTERNATIONAL REPORTING, Works
It is a war of rusty barges tricked out with artillery that sink in river skirmishes ignored by the world; the warm currents, watched over by squalling gray parrots or shrieking monkeys, carry away the dead.
A war where thatched villages and tin-roofed towns fall and are retaken in a scramble for gold, diamonds and timber as much as for political power.
Yet the Congo war, because of its bizarre roster of combatants and the sheer pile of its booty, remains in a brazen and greedy class by itself.
www.pulitzer.org /year/2001/international-reporting/works/congo1.html   (3310 words)

  
 The Great War Retold by Ralph Raico
These are boom times for histories of World War I. Like its sequel, though to a lesser degree, it seems to be the war that never ends.
The war was greeted as a cleansing, purifying moment, at least by the urban masses, whose enthusiasm easily outweighed the rural population’s relative passivity.
The quickly escalating costs of the war led to unprecedented taxation and a vast redistribution of wealth, basically from the middle classes to the recipients of government funds: contractors and workers in war industries, subsidized industrialists and farmers, and, most of all, financiers.
www.lewrockwell.com /raico/raico24.html   (1944 words)

  
 Electronics:History Chapter 3 - Wikibooks, collection of open-content textbooks
In the "War of Currents" era in the late 1880s, Nikola Tesla and Thomas Edison became adversaries due to Edison's promotion of direct current for electric power distribution over the more efficient alternating current advocated by Tesla.
High currents of direct current melted copper wires and could rarely be transmitted for a distance of greater than a mile.
The feud became known as "the War of Currents." Edison claimed that high voltage systems were inherently dangerous; Westinghouse replied that the risks could be managed and were outweighed by the benefits.
en.wikibooks.org /wiki/Electronics:History_Chapter_3   (7676 words)

  
 IMC India - Cyclist from Nepal Rides Against Currents of War   (Site not responding. Last check: 2007-10-08)
"War is not the answer," the 34-year-old Nepalese citizen summarized his philosophy to me during a break on his trek to Seattle.
As war fever spreads here in the West, it might be easy for some to dismiss such sentiments as wide-eyed idealism, the kind that naively believes a global bike ride can somehow make the world a more peaceful place.
He has not only lost his father to war, but as a peace and democracy activist in Nepal, Shah endured arrest, torture, and even being shot once for practicing his beliefs in a country that was a dictatorship (it's now a constitutional monarchy).
india.indymedia.org /en/2002/08/2047.shtml   (1228 words)

  
 Definition of War of Currents
High loads of direct current melted copper wires and could rarely be transmitted for a distance of greater than a mile.
Most importantly, alternating current could be easily manipulated with a transformer to change voltage and current.
Tesla's AC current does not kill if the frequency is high enough, it simply burns the skin without destroying the tissue as on lower frequencies.
www.wordiq.com /definition/War_of_Currents   (1374 words)

  
 Topical Currents . May 04 Archive | WLRN 91.3 FM   (Site not responding. Last check: 2007-10-08)
Topical Currents looks at what is termed “defensive teaching.” A recent poll finds that many teachers and principals may make educational decisions in light of legal ramifications and parental lawsuits.
Topical Currents looks at the history and functions of human corpses with Mary Roach, author of “Stiff: The Curious Lives of Human Cadavers.” Human remains have aided medical research, of course, but have also given insight to forensic science, weapons research, safety tests and a host of other uses.
The Miami Circle is currently covered with tarpaulins and sand while a study is conducted.
www.wlrn.org /radio/tc/tc_past_may04.htm   (741 words)

  
 Edison Medal - Wikipedia, the free encyclopedia
Edison coined the term “to Westinghouse” for the execution of humans by AC current.
Nikola Tesla, 'The Genius who Lit the World', received the Edison Medal in 1917 "For meritorious achievement in his early original work in polyphase and high-frequency electrical currents." Tesla worked with Edison after he arrived in the US, but the two men were worlds apart and soon they went their separate ways again.
The war of currents, AC (Tesla) and DC (Edison) that started a few years later brought animosity and bitterness to the two.
en.wikipedia.org /wiki/Edison_Medal   (730 words)

  
 War Of Currents Era - Thomas Edison
War of Currents During the initial years of electricity distribution, Edisons DC was the standard for the United States and Edison was not disposed to lose all his patent royalties.
During the commonly referred to War of Currents era, Serbian immigrant Nikola Tesla and Edison became adversaries due to Edisons promotion of DC for electric power distribution over the more efficient alternating current (AC) advocated by Tesla, who patented AC in Graz, Austria.
Edison (or, reportedly, one of his employees) employed the tactics of misusing Teslas patents to construct the first electric chair for the state of New York in order to promote the idea that AC was deadly.
mywebpage.netscape.com /Adachi5441/thomas-edison-war-of-currents-era.html   (358 words)

  
 Thomas Edison - Wikipedia, the free encyclopedia
In 1878, Edison applied the term filament to the element of glowing wire carrying the current, although English inventor Joseph Swan had used the term prior to this.
Despite Edison's contempt for capital punishment, the war against AC led Edison to become involved in the development and promotion of the electric chair as a demonstration of AC's greater lethal potential versus the "safer" DC.
Frank J. Sprague, a competent mathematician and former naval officer, was recruited by Edward H. Johnson, and joined the Edison organization in 1883.
en.wikipedia.org /wiki/Thomas_Edison   (3068 words)

  
 Spartanburg SC | GoUpstate.com | Spartanburg Herald-Journal
In the "War of Currents" era (sometimes, "War of the Currents" or "Battle of Currents") in the late 1880s, George Westinghouse and Thomas Edison became adversaries due to Edison's promotion of direct current (DC) for electric power distribution over the alternating current (AC) advocated by Westinghouse and Nikola Tesla.
When Tesla introduced a system for alternating current generators, transformers, motors, wires and lights in November and December of 1887, it became clear that AC was the future of electric power distribution, although DC distribution was used in downtown metropolitan areas for decades thereafter.
The "War of the Currents" was part of the plot for the film The Prestige although the rivalry between Tesla and Edison was exaggerated and there was no mention of Westinghouse.
www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=War_of_Currents   (3801 words)

  
 PowerPedia:Nikola Tesla - PESWiki
This transformer developed (or converted) currents of high potential and was comprised of a primary and secondary coil (optionally, one terminal of the secondary could be electrically connected with the primary; similar to modern ignition coils).
This treatise of the particle beam is currently in the Nikola Tesla Museum archive in Belgrade.
Tesla believed that war could not be avoided until the cause for its recurrence was removed, but was opposed to wars in general.
peswiki.com /energy/PowerPedia:Nikola_Tesla   (13981 words)

  
 The Hindu : Go beyond resisting Iraq war, says Arundhati Roy
War and its impact on the lives of thousands of people in the world were the dominant theme at the anti-globalisation meet, the World Social Forum, that opened in Mumbai this evening.
Against the backdrop of a massive stage depicting a map of the world, an impressive line-up of speakers from around the world repeatedly spoke about the war on Iraq in particular and the many conflicts around the world that remain unresolved.
"War is a political weapon", said Abdul Amir Al-Rekaby from the Iraqi National Democratic Currents.
www.hindu.com /2004/01/17/stories/2004011706370100.htm   (303 words)

  
 The Avalon Project : Second Inaugural Address of Woodrow Wilson
We are of the blood of all the nations that are at war.
The currents of our thoughts as well as the currents of our trade run quick at all seasons back and forth between us and them.
As some of the injuries done us have become intolerable we have still been clear that we wished nothing for ourselves that we were not ready to demand for all mankind--fair dealing, justice, the freedom to live and to be at ease against organized wrong.
www.yale.edu /lawweb/avalon/presiden/inaug/wilson2.htm   (1064 words)

  
 Articles - Power transmission   (Site not responding. Last check: 2007-10-08)
Alternating current is normally preferred as its voltage may be easily stepped up by a transformer in order to minimise resistive loss in the conductors used to transmit power over great distances; another set of transformers is required to step it back down to safer or more usable voltage levels at destination.
A pneumatic system was proposed by proponents of Edison´s direct current as the basis of the power grid.
The War of Currents ended with alternating current (AC) as the only means of long distance power transmission.
www.seekj.com /articles/Power_transmission   (452 words)

  
 The Day They Turned the Falls On: The Invention of the Universal Electrical Power System - Case Study Collection - ...
The Westinghouse organization predominantly utilized AC, and Westinghouse was the champion of AC in the so-called War of the Currents then raging between proponents of AC and advocates of continuous or direct current (DC).
In the AC induction motor, the current supply to the armature is by induction from the magnetic field produced by the field current.
This was basically because of inductive reactance, which is a counter-voltage generated in a conductor by the build-up and collapse of the magnetic field produced by the current in the same conductor (in a motor, in which the windings of the armature constitute a coil, the counter-voltage effect is pronounced).
ublib.buffalo.edu /libraries/projects/cases/niagara.htm   (7682 words)

  
 RPGamer > Currents   (Site not responding. Last check: 2007-10-08)
Currents Top Ten I 2005 Breaks Sales Records I Mature Games Bill Comes to Florida I Front Mission Reaches Milestone I Teachers Support Games in Education I Shanda Closes Office I Stock Ticker
I believe the last Currents issue you all saw was done by Billy who filled in for me during my finals.
From the California game bill being overturned to fellow RPGamer columnists getting married, I feel like that Soviet cosmonaut who went up to the Mir, was stranded in space for a year while the USSR fell apart, and came home to a new world.
www.rpgamer.com /news/currents/2006/column/eg011406.html   (1985 words)

  
 War of Currents -   (Site not responding. Last check: 2007-10-08)
The advantages of HVDC over AC for bulk transmission include higher power ratings for a given line (important since installing new lines and even upgrading old ones is extremely expensive) and better control of power flows, especially in transient and emergency conditions that often lead to flouts.
Had modern HVDC technology been available to Edison, he might well have won the War of the Currents.
Direct current systems are still universally used in vehicles for lighting, ignition, and battery charging.
psychcentral.com /psypsych/War_of_Currents   (1603 words)

  
 War in Iraq - Chinese Media - Worldpress.org
In the second week of the war, more summaries, news analyses, and in-depth reports on the war began to appear, as well as analyses of its impact on the world economy, supply shortages in Iraq, the U.N. oil-for-food program, and the international responses.
The media reports all notice that the war in Iraq turned in favor of the U.S.-British coalition forces around April 7-8, as a report filed by Xinhua News Agency on April 9 stated.
Aside from the war in Iraq, Chinese media have given considerable space or air time to international responses to the war and to civilian casualties.
www.worldpress.org /Asia/1044.cfm   (1013 words)

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