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Topic: Johann Poggendorff

	Johann Christian Poggendorff - Wikipedia, the free encyclopedia
		Poggendorff is known for his electrostatic motor which is analogous to Wilhelm Holtz's electrostatic machine.
		Poggendorff was admirably qualified for the post, and edited the journal for 52 years, until 1876.
		The Poggendorff Illusion is an optical illusion that involves the brain's perception of the interaction between diagonal lines and horizontal and vertical edges.
	en.wikipedia.org /wiki/Johann_Christian_Poggendorff (691 words)

	[No title]
		POGGENDORFF, JOHANN CHRISTIAN (1796-1877), German physicist, was born in Hamburg on the 29th of December 1796.
		Poggendorff immediately put himself in communication with the publisher, Barth of Leipzig, with the result that he was installed as editor of a scientific journal, Annalen der Physik und- Chemie, which was to be a continuation of Gilberts Annalen on a somewhat extended plan.
		In the course of his fifty-two years' editorship of the Annalen Poggendorff could not fail to acquire an unusual acquaintance with the labours of modern men of science.
	encyclopedia.jrank.org /correction/edit?locale=en&content_id=53381 (609 words)

	Poggendorff (Site not responding. Last check: 2007-10-11)
		Poggendorff studied problems in electricity and magnetism, he developed a mirror galvanometer and, actually, he gave the name "galvanometer" to a physical instrument measuring an electric current.
		Poggendorff built a system in which he installed a small flat mirror to reflect a relatively narrow beam of light.
		The design of a mirror galvanometer comprises a coil of wire wound on a soft iron core suspended in the magnetic field of a permanent magnet - this coil is suspended generally by means of a strip of phosphor bronze wire and located centrally between the poles of the permanent magnet.
	chem.ch.huji.ac.il /~eugeniik/history/poggendorff.html (355 words)

	Schweigger (Site not responding. Last check: 2007-10-11)
		Johann (Johan) Schweigger was a chemist, physicist, and professor of mathematics at the Gymnasium of Bayreuth in 1803, at the Polytechnic School of Nuremberg in 1819, and the University of Halle, Germany, sometime in 1820.
		Johann Poggendorff of Berlin, Germany, independently of Schweigger built a crude galvanometer, also called a multiplier, similarly to that of Schweigger in 1821.
		Poggendorff has been given credit for inventing the multiturn method of increasing the sensitivity of the detection of electrical current, but historians have favored Schweigger for this invention.
	chem.ch.huji.ac.il /~eugeniik/history/schweigger.html (1559 words)

	Johann Christian Poggendorff: bio and encyclopedia article (Site not responding. Last check: 2007-10-11)
		Poggendorff is known for his electrostatic motor An electrostatic motor or capacitor motor is a type of electric motor based on the attraction and repulsion of electric charge....
		Korbinian Brodmann Korbinian brodmann (november 17, 1868 - august 22, 1918) was a german neurologist who became famous for his definition of the cerebral cortex into 52 distinct regions from their cytoarchitectonic...
		Johannes Stark Johannes stark (april 15, 1874 - june 21, 1957) was a prominent 20th century physicist, and a nobel prize in physicsphysics nobel prize laureate....
	www.absoluteastronomy.com /j/johann_christian_poggendorff (1048 words)

	History of Science - Bibliographies of Primary Sources - Articles
		Poggendorff's biographisch-literarisches Handwörterbuch zur Geschichte der exakten Wissenschaften (1858 bis 1883).
		Poggendorff's biographisch-literarisches Handwörterbuch zur Geschichte der exakten Wissenschaften (1883 bis 1904).
		Poggendorff's biographisch-literarisches Handwörterbuch für Mathematik, Astronomie, Physik mit Geophysik, Chemie, Kristallographie und verwandte Wissenschaftgebiete (1923 bis 1931).
	www.ifi.unicamp.br /~ghtc/sources/catalogue.htm (1270 words)

	Biographisch-Literarisches Handwoerterbuch Der Exakten Naturwissenschaften, Ergnzungsband ...
		Poggendorff's comprehensive reference, Biographic-Literary Dictionary of the Exact Sciences, has been appearing since 1863 and should be found on the shelves of every library.
		Parallel to the work of the Poggendorff editors, this was reworked and completed by Dr. Heidi Kuhn.
		The supplement is intended to fill the gap between the Poggendorff Dictionary and the mathematicians' bibliographies found in the electronic version.
	www.ecampus.com /bk_detail.asp?isbn=3527403302&referrer=yah04 (260 words)

	POGGENDORFF, JOHANN CH... - Online Information article about POGGENDORFF, JOHANN CH...
		Leipzig, with the result that he was installed as editor of a scientific journal, Annalen der Physik und- Chemie, which was to be a continuation of Gilberts Annalen on a somewhat extended plan.
		Poggendorff was admirably qualified for the See also:
		Poggendorff was a physicist of high although not of the very highest See also:
	encyclopedia.jrank.org /PIG_POL/POGGENDORFF_JOHANN_CHRISTIAN_17.html (743 words)

	Gustav Heinrich Wiedemann (Site not responding. Last check: 2007-10-11)
		Johann Christian Poggendorff Johann Christian Poggendorff quick summary:
		Johann christian poggendorff (december 29, EHandler: no quick summary.
		Johann Karl Friedrich Zöllner[Follow this hyperlink for a summary of this subject]
	www.absoluteastronomy.com /enc3/gustav_heinrich_wiedemann (1320 words)

	Poggendorff illusion - Wikipedia, the free encyclopedia
		It is named after Johann Poggendorff (1796-1877), a German physicist who first described it in 1860.
		In the picture to the right, a straight fl line is obscured by a red rectangle.
		This page was last modified 07:06, 30 May 2006.
	en.wikipedia.org /wiki/Poggendorff_illusion (112 words)

	The Poggendorff Illusion Explained (Site not responding. Last check: 2007-10-11)
		Poggendorff illusion is a common optical illusion studied by neuroscientists as well as machine vision researchers.
		"Johann Poggendorff pointed out in the 19th century that when the continuity of an obliquely oriented line is interrupted, the positions of the line segments on either side of the interruption appear to be shifted".
		The paper proposes that the human brain generates the illusion by applying accumulated experience statistically learned from interrupted lines found in scenes viewed in our natural environment.
	robots.net /article/1501.html (186 words)

	AllRefer.com - Johann Christian Poggendorff (Physics, Biography) - Encyclopedia
		You are here : AllRefer.com > Reference > Encyclopedia > Physics, Biographies > Johann Christian Poggendorff
		Johann Christian Poggendorff[yO´hAn kris´tyAn pOg´undOrf´´] Pronunciation Key, 1796–1877, German physicist and chemist.
		More articles from AllRefer Reference on Johann Christian Poggendorff
	reference.allrefer.com /encyclopedia/P/Poggendo.html (156 words)

	Illusions (Site not responding. Last check: 2007-10-11)
		They get this name because the image tends to distort the size or shape of an object.
		The first illusion we will look at is called the Poggendorff Illusion.
		It was first proposed by Johann Poggendorff in 1860.
	www.frontiernet.net /~docbob/ilusion1.htm (299 words)

	Amazon.com: Biographisch-Literarisches Handwoerterbuch Der Exakten Naturwissenschaften, Band Viii, Teil 2, ... (Site not responding. Last check: 2007-10-11)
		This item is not eligible for Amazon Prime, but over a million other items are.
		by Johann Ch Poggendorff (Editor), Saumlchsische Akademie Der Wissenschaften Zu Leipzig (Editor), Lebrecht Weichsel (Editor), Margot Koumlstler (Editor)
		If you would like to purchase this title, we recommend that you occasionally check this page to see if it has become available.
	www.amazon.com /exec/obidos/tg/detail/-/3527403337?v=glance (337 words)

	Optical Illusions Etc: free, scary, word & picture optical illusions
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		The below flash presentation is an example of the Poggendorff illusion.
		It can be a very strong illusion at first.
	illusionsetc.blogspot.com /2006/06/poggendorff-optical-illusion.html (416 words)

	Biography
		Also has a listing of Nobel Prize winners by prize category and year.
		Poggendorffs Biographisch-Literarisches Handwörterbuch für Mathematik, Astronomie, Physik mit Geophysik, Chemie, Kristillagraphie und Verwandte Wissensgebiete.
		Alumni Cantabrigienses: A Biographical List of All Known Students, Graduates, and Holders of Office at the University of Cambridge, from the Earliest Times to 1900.
	www2.lib.udel.edu /subj/hist/resguide/biograph.htm (3396 words)

	Poggendorff, Johann Christian on Encyclopedia.com (Site not responding. Last check: 2007-10-11)
		Professor of chemistry at the Univ. of Berlin from 1834, he investigated problems in electricity and magnetism.
		Magazines and Newspapers for: Poggendorff, Johann Christian or search in Pictures and Maps for Poggendorff, Johann Christian
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	www.encyclopedia.com /html/P/Poggendo.asp (83 words)

	Johan Hjelm ; Creating Location Services for the Wireless Web: Professional Developer s Guide With Cdrom, Johann Adam ... (Site not responding. Last check: 2007-10-11)
		Johan Hjelm ; Creating Location Services for the Wireless Web: Professional Developer s Guide With Cdrom, Johann Adam Mohler - Symbolism: Exposition of the Doctrinal Differences Between Catholics and Protestants As Evidenced By Their Symbolical Writings,
		Johann Adam Mohler - Symbolism: Exposition of the Doctrinal Differences Between Catholics and Protestants As Evidenced By Their Symbolical Writings
		Johann Ch Poggendorff - Biographisch-Literarisches Handwoerterbuch Der Exakten Naturwissenschaften, Band Viii, Teil 2, Doppellieferung 5+6
	www.romancebooksstore.com /121481_johan-hjelm.html (216 words)

	Poggendorff, ... - ENCYCLOPEDIA - The History Channel UK
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	thehistorychannel.co.uk /site/search/search.php?word=POGGENDORFF,+... (153 words)

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