21. Heaviside, Oliver heaviside, oliver hev'EsId" Pronunciation Key. heaviside, oliver , 18501925, English physicist. He did valuable work in telephony and in the theory of electrical conduction in cables and other areas of electric theory. http://www.factmonster.com/cgi-bin/id/A0823142.hmtl

Encyclopedia Heaviside, Oliver E s I Pronunciation Key Heaviside, Oliver , English physicist. He did valuable work in telephony and in the theory of electrical conduction in cables and other areas of electric theory. He suggested (1902) the existence of a layer in the upper atmosphere responsible for altering the path of certain radio waves and thus making possible long-distance transmission of signals. The same conclusion was reached independently by Arthur E. Kennelly; its existence was proven, and it is known both as the Kennelly-Heaviside layer and as the Heaviside layer. See ionosphere The Columbia Electronic Encyclopedia, heaves heavy spar Print this page Cite this page AD AD AD ADS Link to Fact Monster Add Fact Monster search to your site ... Privacy Brought to you by:

22. Heaviside, Oliver (1850-1925) -- From Eric Weisstein's World Of Scientific Biogr heaviside, oliver (18501925), English electrical engineer who adaptedcomplex numbers to the study of electrical circuits. He developed http://scienceworld.wolfram.com/biography/Heaviside.html

Branch of Science Physicists Nationality English Heaviside, Oliver (1850-1925) English electrical engineer who adapted complex numbers to the study of electrical circuits. He developed techniques for applying Laplace transforms to the solution of differential equations. In addition, he reformulated Maxwell's field equations in terms of electric and magnetic forces and energy flux. His formulation, however, was not as clear as Heinrich Hertz's . Two months after Kennelly , Heaviside suggested than the reason Marconi was able to transmit trans-Atlantic radio waves was that the signal bounced off an electrified layer in the upper atmosphere. Additional biographies: MacTutor (St. Andrews) References Heaviside, O. Electrical Papers, 2 vols. New York: Chelsea, 1970.

23. Heaviside Biography of oliver heaviside (18501925) oliver heaviside. Born 18 May 1850 in Camden Town, London, England Main index. oliver heaviside's parents were Rachel Elizabeth West and Thomas heaviside http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Heaviside.html

Oliver Heaviside Born: 18 May 1850 in Camden Town, London, England Died: 3 Feb 1925 in Torquay, Devon, England Click the picture above to see three larger pictures Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Oliver Heaviside 's parents were Rachel Elizabeth West and Thomas Heaviside. Thomas was a wood engraver and water colour artist. Oliver, the youngest of his parents four sons, was born at 55 King Street in Camden Town. He caught scarlet fever when he was a young child and this affected his hearing. This was to have a major effect on his life, making his childhood unhappy with relations between himself and other children difficult. However his school results were rather good and in 1865 he was placed fifth from 500 pupils. Academic subjects seemed to hold little attraction for Heaviside however and at age 16 he left school. Perhaps he was more disillusioned with school than with learning since he continued to study after leaving school, in particular he learnt Morse code, studied electricity and studied further languages in particular Danish and German. He was aiming at a career as a telegrapher and in this he was advised and helped by his uncle Charles Wheatstone (the piece of electrical apparatus known as the Wheatstone bridge is named after him). In 1868 Heaviside went to Denmark and became a telegrapher. He progressed quickly in his profession and returned to England in 1871 to take up a post in Newcastle upon Tyne in the office of Great Northern Telegraph Company which dealt with overseas traffic.

24. Oliver Heaviside oliver heaviside When I moved to Paignton in 1959 I had no idea that buriednear my new home was a famous forebear of mine, oliver heaviside. http://www-gap.dcs.st-and.ac.uk/~history/Miscellaneous/other_links/Heaviside.htm

A sketch by Alan Heather OLIVER HEAVISIDE When I moved to Paignton in 1959 I had no idea that buried near my new home was a famous forebear of mine, Oliver Heaviside. My family on my mother's side - she was a Heaviside - would speak of Oliver, but until I went to school and learned about a Heaviside Layer around the Earth off which radio signals 'bounced', I knew little of him, except he was deaf, and had bright red hair and piercing eyes which frightened children. When Oliver Heaviside moved in 1897 to Bradley View, 2 Totnes Road, few people in Newton Abbot would have known they had an eminent scientist living there. An outstanding physicist and mathematician, in a few years he would explain in a now world-famous prediction why wireless waves were able to travel around the Earth and not be lost in space. Oliver, then 47 years old, was already well known for his work on the science of long distance telegraphy and telephone systems, and was a Fellow of the Royal Society. He was to stay in Newton until 1909 when he was forced by ill health to move nearer relatives in Torquay. An 'oddity' rather than an eccentric, he was a bachelor with an impish sense of humour. He spent much time studying and writing scientific papers in complete solitude. As a result he was often not understood by local people and his time at Bradley View was sometimes fraught. Youngsters threw stones at windows in the house and wrote unpleasant remarks on the front gate. As they played in nearby Bakers Park they often trespassed in the garden to steal from fruit trees. Hampered by deafness, he suffered from gout and was constantly plagued with bouts of jaundice, one of which was to cost him his life.

25. Heaviside, Oliver heaviside, oliver 18501925, English physicist. He did valuable work in telephony and in the theory of electrical conduction in cables and other areas of electric theory. He suggested (1902) the http://www.slider.com/enc/24000/Heaviside_Oliver.htm

26. Adventures In CyberSound: From Obscurity To Enigma : The Work Of Oliver Heavisid ADVENTURES in CYBERSOUND. From Obscurity to Enigma The Work of oliver heavisideby I. Yavetz. Contents Chapter I The Enigmatic Legacy of oliver heaviside. http://www.acmi.net.au/AIC/OBSCURITY_ENIGMA.html

A D V E N T U R E S in C Y B E R S O U N D From Obscurity to Enigma : The Work of Oliver Heaviside by I. Yavetz The contributions to electromagnetism, electrical engineering, and applied mathematics by Oliver Heaviside (1872 - 1891) have consistently attracted attention over the years. Of late they have become a major source for the study of the development of field theory after Maxwell. From Obscurity to Enigma is a systematic, in-depth study of the most creative period in Heaviside's scientific career. During this period he wrote the essays and articles that constitute his two-volume Electrical Papers. Here he presented his novel reformulation of Maxwell's equations, created the elements of vector algebra, produced the first comprehensive theory of transmission lines, suggested the inductive "loading" of telegraph and telephone lines to improve long-distance communications, introduced his innovative version of the operational calculus, and made several important contributions to the electrodynamics of moving bodies. 'From Obscurity to Enigma' traces the evolution of Heaviside's ideas against the background of growing knowledge in basic electromagnetic theory, telegraphy, and telephony at the time. It reveals the thematic coherence that unifies his various publications, and sheds considerable light on the reasons for the exclamations of incomprehension that greeted his work from the time of its publication to the present.

27. Heaviside, Oliver Search Biographies Bio search tips heaviside, oliver hev'EsId" Pronunciation Key. heaviside, oliver , 18501925, English physicist http://www.infoplease.com/ce6/people/A0823142.html

HOTWORDS CITE PRINT EMAIL in All Infoplease Almanacs Biographies Dictionary Encyclopedia Home Almanacs Atlas Dictionary ... D-Day Infoplease Tools Periodic Table Conversion Tool Perpetual Calendar Year by Year ... Site Map Also from Infoplease Search Infoplease Info search tips Search Biographies Bio search tips Encyclopedia Heaviside, Oliver E s I Pronunciation Key Heaviside, Oliver , English physicist. He did valuable work in telephony and in the theory of electrical conduction in cables and other areas of electric theory. He suggested (1902) the existence of a layer in the upper atmosphere responsible for altering the path of certain radio waves and thus making possible long-distance transmission of signals. The same conclusion was reached independently by Arthur E. Kennelly; its existence was proven, and it is known both as the Kennelly-Heaviside layer and as the Heaviside layer. See ionosphere The Columbia Electronic Encyclopedia, heaves heavy spar Related content from HighBeam Research on: Oliver Heaviside (book reviews) (American Scientist) Over-the-horizon backscatter radar. (Special Report)

28. Kennelly-Heaviside Layer - Wikipedia, The Free Encyclopedia (Redirected from Kennellyheaviside Layer). The Kennelly-heaviside Layer is alsoknown as the E region or just as heaviside Layer (after oliver heaviside). http://en.wikipedia.org/wiki/Kennelly-Heaviside_Layer

Kennelly-Heaviside layer From Wikipedia, the free encyclopedia. (Redirected from Kennelly-Heaviside Layer The Kennelly-Heaviside Layer is also known as the E region or just as Heaviside Layer (after Oliver Heaviside ). It is a layer of ionised gas occurring at 90-150km in altitude, one of several layers in the ionosphere . It reflects medium-frequency radio waves, and because of this reflection radio waves can be propagated beyond the horizon. Propagation is affected by time of day. During the daytime the solar wind presses this layer closer to the Earth, thereby limiting how far it can reflect radio waves. On the night side of the Earth, the solar wind drags the ionosphere further away, thereby greatly increasing the range which radio waves can travel by reflection, called skywave . The extend of the effect is further influenced by the season (because of the differing distance between Earth and the Sun), and the amount of sunspot activity. edit History Nikola Tesla originally discovered this area (around July 3 ). He made mathematical calculations based off his experiments in his research of electromagnetic propagation and resonance and deduced that the resonant frequency of this area was approximately eight hertz. The Kennelly-Heaviside Layer was confirmed in

29. Heaviside, Oliver heaviside, oliver (18501925). English physicist. In 1902 he predictedthe existence of an ionized layer of air in the upper atmosphere http://www.cartage.org.lb/en/themes/Biographies/MainBiographies/H/Heaviside/1.ht

Heaviside, Oliver English physicist. In 1902 he predicted the existence of an ionized layer of air in the upper atmosphere, which was known as the Kennelly-Heaviside layer but is now called the E layer of the ionosphere. Deflection from it makes possible the transmission of radio signals around the world, which would otherwise be lost in outer space. His theoretical work had implications for radio transmission. His studies of electricity published in Electrical Papers 1892 had considerable impact on long-distance telephony, and he added the concepts of inductance, capacitance, and impedance to electrical science. Heaviside was born in London. Because of severe hearing difficulties, he was mainly self-taught and was unemployed most of his life. When Heaviside became involved with the passage of electricity along conductors, he modified Ohm's law to include inductance and this, together with other electrical properties, resulted in his derivation of the equation of telegraphy. On considering the problem of signal distortion in a telegraph cable, he came to the conclusion that this could be substantially reduced by the addition of small inductance coils throughout its length, and this method has since been used to great effect. In Electromagnetic Theory 1893-1912, Heaviside extended Scottish physicist James Clerk Maxwell's discoveries as well as making many valuable discoveries of his own. In the third volume, he considered wireless telegraphy

30. Heaviside, Oliver. The Columbia Encyclopedia, Sixth Edition. 2001 The Columbia Encyclopedia, Sixth Edition. 2001. heaviside, oliver.(h v´ s d´´) (KEY) , 1850–1925, English physicist. He did http://www.bartleby.com/65/he/Heavisid.html

Select Search All Bartleby.com All Reference Columbia Encyclopedia World History Encyclopedia Cultural Literacy World Factbook Columbia Gazetteer American Heritage Coll. Dictionary Roget's Thesauri Roget's II: Thesaurus Roget's Int'l Thesaurus Quotations Bartlett's Quotations Columbia Quotations Simpson's Quotations Respectfully Quoted English Usage Modern Usage American English Fowler's King's English Strunk's Style Mencken's Language Cambridge History The King James Bible Oxford Shakespeare Gray's Anatomy Farmer's Cookbook Post's Etiquette Bulfinch's Mythology Frazer's Golden Bough All Verse Anthologies Dickinson, E. Eliot, T.S. Frost, R. Hopkins, G.M. Keats, J. Lawrence, D.H. Masters, E.L. Sandburg, C. Sassoon, S. Whitman, W. Wordsworth, W. Yeats, W.B. All Nonfiction Harvard Classics American Essays Einstein's Relativity Grant, U.S. Roosevelt, T. Wells's History Presidential Inaugurals All Fiction Shelf of Fiction Ghost Stories Short Stories Shaw, G.B. Stein, G. Stevenson, R.L. Wells, H.G. Reference Columbia Encyclopedia PREVIOUS NEXT ... BIBLIOGRAPHIC RECORD The Columbia Encyclopedia, Sixth Edition. Heaviside, Oliver

31. Heaviside Layer. The American Heritage® Dictionary Of The English Language: Fou ETYMOLOGY After oliver heaviside (1850–1925), British physicist. The AmericanHeritage ® Dictionary of the English Language, Fourth Edition. http://www.bartleby.com/61/58/H0115800.html

Select Search All Bartleby.com All Reference Columbia Encyclopedia World History Encyclopedia Cultural Literacy World Factbook Columbia Gazetteer American Heritage Coll. Dictionary Roget's Thesauri Roget's II: Thesaurus Roget's Int'l Thesaurus Quotations Bartlett's Quotations Columbia Quotations Simpson's Quotations Respectfully Quoted English Usage Modern Usage American English Fowler's King's English Strunk's Style Mencken's Language Cambridge History The King James Bible Oxford Shakespeare Gray's Anatomy Farmer's Cookbook Post's Etiquette Bulfinch's Mythology Frazer's Golden Bough All Verse Anthologies Dickinson, E. Eliot, T.S. Frost, R. Hopkins, G.M. Keats, J. Lawrence, D.H. Masters, E.L. Sandburg, C. Sassoon, S. Whitman, W. Wordsworth, W. Yeats, W.B. All Nonfiction Harvard Classics American Essays Einstein's Relativity Grant, U.S. Roosevelt, T. Wells's History Presidential Inaugurals All Fiction Shelf of Fiction Ghost Stories Short Stories Shaw, G.B. Stein, G. Stevenson, R.L. Wells, H.G. Reference American Heritage Dictionary heavily ... BIBLIOGRAPHIC RECORD The American Heritage Dictionary of the English Language: Fourth Edition.

32. MSN Encarta - Heaviside, Oliver Translate this page Dans ce cas, connectez-vous en cliquant sur le lien Aller sur MSN Encarta Premium(ci-dessus). heaviside, oliver. Plus de résultats pour heaviside, oliver, http://fr.encarta.msn.com/encyclopedia_761554300/Heaviside_Oliver.html

Accueil MSN Mon MSN Hotmail Rechercher ... S'abonner   Encarta Premium Rechercher Article accessible sur abonnement MSN Encarta Premium : Acc©dez   30 000 articles encyclop©diques avec plus de 12 000 illustrations, un atlas mondial interactif, un guide du Web et une palette compl¨te de ressources et d'outils ©ducatifs. 34,99 € par an (service d’acc¨s   Internet non compris). En savoir plus. Cet article n'est accessible que si vous ªtes abonn©   MSN Encarta Premium. Dans ce cas, connectez-vous en cliquant sur le lien Aller sur MSN Encarta Premium (ci-dessus). Heaviside, Oliver Heaviside, Oliver (1850-1925), physicien britannique, qui a sugg©r© l’existence d’une couche atmosph©rique conductrice permettant la transmission de... Encarta vous int©resse ? Abonnez-vous d¨s maintenant et b©n©ficiez de : Plus de 30 000 articles 2 000 analyses d'oeuvre Plus de 12 000 m©dias (dont des extraits sonores, des vid©os et des m©dias interactifs) Un atlas mondial interactif Une palette compl¨te de ressources et d'outils ©ducatifs Un guide du Web Plus de r©sultats pour Heaviside, Oliver

33. Oliver Heaviside --  Britannica Concise Encyclopedia Online Article heaviside , oliver Britannica Concise. MLA style oliver heaviside. BritannicaConcise Encyclopedia. 2004. Encyclopædia Britannica Premium Service. http://www.britannica.com/ebc/article?eu=392102&query=einstein&ct=

34. Heaviside Wheatstone. oliver heaviside was born in a low social class of VictorianEngland in the same London slums as Dickens was. He caught http://www.geocities.com/neveyaakov/electro_science/heaviside.html

Oliver W. Heaviside b. May 18, 1850,Camden Town, London, England d. February 3, 1925, Paignton, Devon, England Oliver W. Heaviside was English electrical engineer who adapted complex numbers to the study of electrical circuits. He developed techniques for applying Laplace transforms to the solution of differential equations. In addition, he reformulated Maxwell's field equations in terms of electric and magnetic forces and energy flux. In 1902 Heaviside correctly predicted the existence of the ionosphere, an electrically conducting layer in the atmosphere, by means of which radio signals are transmitted around the earth's curvature. Oliver W. Heaviside was born on May 18, 1850 in Camden Town, London, England, the youngest of four sons of Thomas Heaviside, an engraver and watercolorist, and Rachel Elizabeth West, a sister-in-law of the famous physicist Sir Charles Wheatstone . Oliver Heaviside was born in a low social class of Victorian England in the same London slums as Dickens was. He caught scarlet fever when he was a young child and this affected his hearing. This was to have a major effect on his life making his childhood unhappy with relations between himself and other children difficult. However his school results were rather good and in 1865 he was placed fifth from 500 pupils. Academic subjects seemed to hold little attraction for Heaviside however and at age 16 he left school. Perhaps he was more disillusioned with school than with learning since he continued to study after leaving school, in particular he learnt Morse code, studied electricity and studied further languages in particular Danish and German. He was aiming at a career as a telegrapher and in this he was advised and helped by his uncle Charles Wheatstone. In 1868 Heaviside went to Denmark and became a telegrapher. He progressed quickly in his profession and returned to England in 1871 to take up a post in Newcastle upon Tyne in the office of Great Northern Telegraph Company which dealt with overseas traffic.

35. Oliver Heaviside - InformationBlast oliver heaviside. ImageOheaviside.jpg oliver heaviside Scholar. Publications.heaviside, oliver, Electromagnetic induction and its propagation . http://www.informationblast.com/Oliver_Heaviside.html

Oliver Heaviside Oliver Heaviside Scholar Oliver Heaviside May 18 February 3 ) was a self-taught short, red-headed British mathematician and physicist . Though Heaviside was at odds with the scientific establishment for most of his life, he changed the face of mathematics and science. Biography Early years Heaviside was born in Camden Town London England ). Heaviside suffered from scarlet fever during his youth (and had a lasting impact on him; leaving him partly deaf ). Although he was a good scholar (placed fifth out of five hundred students in ), he left school at 16 and began learning about the Morse code and electromagnetism. Heaviside became a telegraph operator, initially in Denmark and, later, at the Great Northern Telegraph Company. Heaviside continued to study and, in , while working as a chief operator in Newcastle upon Tyne , he started an analysis of electricity . In , Heaviside left this position and researched in isolation at his parents' house. Here he helped develop transmission line theory (also know as the " telegrapher's equations Heaviside showed mathematically that uniformly distributed inductance in a telegraph line would diminish both attenuation and distortion , and that, if the inductance were great enough and the insulation resistance not too high, the

36. Oliver Heaviside Definition Meaning Information Explanation oliver heaviside definition, meaning and explanation and more about oliver heaviside.FreeDefinition - Online Glossary and Encyclopedia, oliver heaviside. http://www.free-definition.com/Oliver-Heaviside.html

A B C D ... Contact Beta 0.71 powered by: akademie.de PHP PostgreSQL Google News about your search term Oliver Heaviside Oliver Heaviside Scholar Oliver Heaviside May 18 February 3 ) was a self-taught short, red-headed British mathematician and physicist . Though Heaviside was at odds with the scientific establishment for most of his life, he changed the face of mathematics and science. Inhaltsverzeichnis 1 Biography 1.1 Early years 1.2 Middle years 1.3 Later years ... 7 External links and references Biography Early years Heaviside was born in Camden Town London England ). Heaviside suffered from scarlet fever during his youth (and had a lasting impact on him; leaving him partly deaf ). Although he was a good scholar (placed fifth out of five hundred students in ), he left school at 16 and began learning about the Morse code and electromagnetism. Heaviside became a telegraph operator, intially in Denmark and, later, at the Great Northern Telegraph Company. Heaviside continued to study and, in , while working as a chief operator in Newcastle upon Tyne , he started an analysis of electricity . In , Heaviside left this position and researched in isolation at his parents' house. Here he helped develop

37. HighBeam Research: Search Results: Article heaviside, oliver (18501925). The Hutchinson Dictionary of ScientificBiography; 1/1/1998. Read the Full Article, Get a FREE Trial http://www.highbeam.com/library/doc0.asp?DOCID=1P1:28909614&num=1&ctrlInfo=Round

38. HighBeam Research: ELibrary Search: Results out into space) oliver heaviside and Arthur Kennelly 5. heaviside, oliver (18501925)The Hutchinson Dictionary of Scientific Biography; January 1, 1998 http://www.highbeam.com/library/search.asp?FN=AO&refid=ency_refd&search_thesauru

39. T2x22x932.jpg oliver heaviside. oliver heaviside This month marks the 150th anniversaryof the birth of an extraordinary man who spent much of http://www.torbytes.co.uk/op/tm2/lv2/item932-def.htm

Main Menu Home About Us Help Feedback Enter the site Select a Theme Select a Level Search Return to: Isambard Kingdom Brunel People Personal Life Personal Wellbeing Oliver Heaviside Oliver Heaviside This month marks the 150th anniversary of the birth of an extraordinary man who spent much of his life in Devon and who laid the foundations for modern telecommunications. Click on the thumbnail above for a 787px wide by 1200px high image. (filesize:242.38 kB). If you right click, or shift click on a Mac, you can choose to open the image in a new window. Technical Information (Metadata) Technical Information (Metadata) Title Value Item Identifier ref 932 Creator McGinty, Phil Format greyscale magazine article; 297 mm x 210 mm Language London. Denmark.Devon. Paignton. Torquay. Berry Pommeroy Publisher Torbay Library Services Rights Devon Life Source Torbay Library Services Subject Brunel. Associates. Science. Type Image Keywords electricity communication maths radio music maxwell newton abbot gravity berry pomeroy victorian acceptable use policy Xebit Ltd. Last modified: Mar 22 04

40. Heaviside heaviside, oliver. (18501925). Anglický fyzik a matematik. Odvodil technikupoužití Laplaceovy transformace pro rešení obycejných http://www.aldebaran.cz/famous/people/Heaviside_Olivier.html

Heaviside, Oliver Anglický fyzik a matematik. Odvodil techniku použití Laplaceovy transformace pro øešení obyèejných diferenciálních rovnic. Spolu s Hertzem pøeformuloval Maxwellovy rovnice elektromagnetického pole tak, aby byly použitelné pro výpoèty polí. Odvodil pole kolem pohybujícího se náboje.

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 2     21-40 of 93    Back | 1  | 2  | 3  | 4  | 5  | Next 20