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Topic: Ernst Heinrich Weber


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In the News (Sat 2 Jun 12)

  
  Wilhelm Eduard Weber - LoveToKnow 1911
WILHELM EDUARD WEBER (1804-1891), German physicist, was born at Wittenberg on the 24th of October 1804, and was a younger brother of Ernst Heinrich Weber, the author of Weber's Law (see below).
Weber's name is especially known for his work on electrical measurement.
He also carried on extensive researches in the theory of magnetism; and it is interesting that in connexion with his observations in terrestrial magnetism he not only employed an early form of mirror galvanometer, but also, about 1833, devised a system of electromagnetic telegraphy, by which a distance of some 9000 ft. was worked over.
www.1911encyclopedia.org /Wilhelm_Eduard_Weber   (257 words)

  
 AllRefer.com - Ernst Heinrich Weber (Medicine, Biography) - Encyclopedia
Ernst Heinrich Weber[ernst hIn´rikh vA´bur] Pronunciation Key, 1795–1878, German physiologist.
He was a professor at the Univ. of Leipzig (1821–71) and is known for his work on touch and for the formulation of Weber's law : that the increase in stimulus necessary to produce an increase in sensation is not fixed but depends on the strength of the preceding stimulus.
With his brother Eduard Friedrich Weber (1806–71) he discovered the inhibitory power of the vagus nerve (1845).
reference.allrefer.com /encyclopedia/W/Weber-Er.html   (203 words)

  
 Weber - Wikipedia, the free encyclopedia
Weber is a surname of German origin, derived from the noun meaning "weaver".
Weber (Wb) is a SI derived unit of magnetic flux
Weber's is the name of a North American burger chain.
en.wikipedia.org /wiki/Weber   (303 words)

  
 Weber   (Site not responding. Last check: 2007-10-31)
Weber defined an electromagnetic unit for electric current which was applied to measurements of current made by the deflection of the magnetic needle of a galvanometer.
Weber improved the tangent galvanometer invented by Hermann von Helmholtz and built an electrodynamometer suitable for studying the force produced by one electric current on another: when the same current passes through two concentric coils placed at right angles to each other, the resulting torque depends on the square of the current.
Weber put forward in 1871 the view that atoms contain positive charges that are surrounded by rotating negative particles and that the application of an electric potential to a conductor causes the negative particles to migrate from one atom to another.
chem.ch.huji.ac.il /~eugeniik/history/weber.html   (2364 words)

  
 stromfreies-internet.de www.stromfreies-internet.de Ernst Heinrich Weber
Januar 1878 in Leipzig), Bruder von Wilhelm Eduard Weber (1804-1891) und Eduard Friedrich Weber (1806-1871), Physiologe und Anatom.
Weber war Sohn des bekannten Theologen Michael Weber, studierte in Wittenberg und Leipzig, wurde 1818 Professor der vergleichenden und 1821 der menschlichen Anatomie, 1840 auch der Physiologie und starb in Leipzig am 26.
Weber beschäftigte sich mit der menschlichen, der vergleichenden und der mikroskopischen Anatomie sowie der Entwicklungsgeschichte der Tiere und der Physiologie, besonders deren physikalischer Seite beschäftigt; von ihm stammen bedeutende Untersuchungen zur Mechanik des Gehens sowie zum Druck-, Temperatur- und Ortssinn in der Haut des Menschen.
www.stromfreies-internet.de /wiki-Ernst_Heinrich_Weber.html   (167 words)

  
 Ernst Heinrich Weber Summary
Weber, the third of 13 children, was born June 24, 1795, in Wittenburg, Germany.
Weber would close the legs of a drafting compass until their points were almost together, and then touch them to a blindfolded subject's back or cheek.
Ernst Heinrich Weber (Wittenberg, June 24, 1795 – January 26, 1878) was a German physician who is considered a founder of experimental psychology.
www.bookrags.com /Ernst_Heinrich_Weber   (859 words)

  
 Research Issues in Art, Design and Media
Weber's work is generally recognised as being the foundation of experimental psychology and throughout his career he conducted a great many, often extremely uncomfortable, experiments exploring the anatomy and physiology of the senses.
Weber had a broad interest in all aspects of sensation, but his experimental work in haptics tends to be most remembered.
Weber's contribution, both to our knowledge of the senses and the experimental methodology employed in their study is considerable.
www.biad.uce.ac.uk /research/riadm/issueTwo/Weber.asp   (1176 words)

  
 AllRefer.com - Ernst Heinrich Weber Information
He applied hydrodynamics to study blood circulation, and formulated Weber's law, relating response to stimulus.
Weber's law (also known as the Weber–Fechner law) states that sensation is proportional to the logarithm of the stimulus.
In 1825, with his brother Wilhelm Weber, he made the first experimental study of interference in sound.
www.allrefer.com /ernst-heinrich-weber   (176 words)

  
 Weber S Law   (Site not responding. Last check: 2007-10-31)
Maximilian Weber (April 21, 1864 – June 14, 1920) was a German political economist and sociologist who is considered one of the founders of the modern, antipositivistic study of sociology and public administration.
Weber argued that religion was one of the primary reasons for the different ways the cultures of the Occident and the Orient have developed.
Weber (pronounced VAY-bur) was born in Erfurt, Germany, the eldest of seven children of Max Weber Sr., a prominent politician and civil servant, and his wife Helene Fallenstein.
www.wwwtln.com /finance/202/weber-s-law.html   (1599 words)

  
 Weber Fechner Law   (Site not responding. Last check: 2007-10-31)
Ernst Heinrich Weber (1795-1878), was one of the first people to quantitatively study the human response to a physical stimulus.
In one of his classic experiments, Weber gradually increased the weight that a blindfolded man was holding and asked him to respond when he first felt the increase.
Weber found that the response was proportional to a relative increase in the weight.
www.wwwtln.com /finance/202/weber-fechner-law.html   (1029 words)

  
 Carl Maria von Weber
In furtherance of this scheme, Weber was taught to sing and play the piano almost as soon as he could speak, though he was unable to walk until he was four years old.In 1798 Michael Haydn taught him for free at Salzburg.
No one doubted Webers innocence, but after a summary trial he and his father were ordered to quit the country, and on the 27th of February they began a new life at Mannheim.
Weber resigned his office at Prague in September 1816, and on the 1st of December, Frederick Augustus, king of Saxony, appointed him kapellmeister at the German opera at Dresden.
www.americanliteraturereview.com /118950_carl-m-heintz_088022679x123personalmoneymanagerbookanddiskwheretofindoutofprintbook.html   (2931 words)

  
 Physiological Influences   (Site not responding. Last check: 2007-10-31)
Weber employed the two-point threshold technique to systematically map the cutaneous sensitivity of the human body.
Weber ask subjects to life two weights, a standard and a comparison.
Weber found that the JND between two weights was a constant ratio (1:40).
www-psych.nmsu.edu /~jem/courses/history/s&s3.html   (939 words)

  
 Ruhr-Universität Bochum
Die Konzeption Ernst Heinrich Webers (1795 - 1878) und ihre Relevanz für die Theorie der Zellen bei Theodor Schwann (1810 - 1882).
The conception of Ernst Heinrich Weber (1795 - 1878) and its relevance for the theory of cells according to Theodor Schwanns (1810 - 1882)] [Manuskript von 50 pp.
Fundstellen zu E. Webers "Ueber die Anwendung der Wellenlehre auf die Lehre vom Kreislauf des Blutes" von 1850 (mit einer Reproduktion des Abbildungsteils zu E. Webers Arbeit zur Lehre vom Kreislauf).
www.ruhr-uni-bochum.de /malakow/Personal/Visitenkarten/Publikationen/g_strahl.htm   (556 words)

  
 Pioneers of Psychology [2001 Tour] - School of Education & Psychology
Weber was educated in Austria and worked in Vienna and Berlin as a research engineer (1924–30) before visiting the United States, where he decided to remain.
Invited to join the government-sponsored Office of Scientific Research and Development at the beginning of World War II, Weber chose to study the little-explored but highly important field of microwave technology.
With his associates, he developed a device for precise control of microwaves that proved useful in field tests of radar and built microwave measuring equipment.
educ.southern.edu /tour/who/pioneers/weber.html   (216 words)

  
 The Epistemology of the Nervous System   (Site not responding. Last check: 2007-10-31)
Ernst Heinrich Weber (1795-1878) was born in Wittenberg and educated at Leipzig, where he remained to serve as Professor of Anatomy from 1818 and of Physiology after 1840.
Whereas Purkyne had shown the value of applying the experimental method to the phenomenology of sensation, Weber extended the approach beyond experimentation to quantification.
In articulating the relationship which Fechner later termed "Weber's Law," Weber provided an existence proof for the possibility of establishing quantitative relationships between variations in physical and mental events.
serendip.brynmawr.edu /Mind/EpistemologyoNS.html   (1722 words)

  
 Ernst Heinrich Weber --  Encyclopædia Britannica   (Site not responding. Last check: 2007-10-31)
Along with Johann von Goethe and Friedrich Schiller, Heinrich Heine is one of the three greatest names in German literature.
As the 19th century drew to a close, a number of important discoveries in the field of physics were made.
One of them—the discovery of electromagnetic radiation—was the achievement of Heinrich Hertz, a German physicist.
www.britannica.com /eb/article?tocId=9076386   (597 words)

  
 CHAPTER 13   (Site not responding. Last check: 2007-10-31)
  Weber found that it was not the absolute difference in weight that led to the discrimination, but the ratio of the JND to the standard weight.
  The result of Fechner's manipulation of Weber's law was the equation S = K log R in which S is the perceived magnitude of the sensation, K is a constant, and R is the physical magnitude of the stimulus.
Lest the emphasis on Weber and Fechner give a false impression about the initiation of research in the field, one aspect, that of threshold measurement, had not waited for their work.
core.ecu.edu /psyc/evansr/EVANS13.HTM   (3565 words)

  
 Ernst (Heinrich) Weber Biography (1795–1878) Online Encyclopedia Article About Ernst (Heinrich) Weber Biography ...
Ernst (Heinrich) Weber Biography (1795–1878) Online Encyclopedia Article About Ernst (Heinrich) Weber Biography (1795–1878)
Physiologist, born in Wittenberg, EC Germany, the brother of Wilhelm Weber.
He became professor of anatomy (1818) and of physiology (1840) at Leipzig, where he devised a method of determining the sensitivity of the skin, introducing the concept of the ‘just noticeable difference’.
encyclopedia.jrank.org /Cambridge/entries/024/Ernst-Heinrich-Weber.html   (123 words)

  
 Ernst Heinrich Weber - Encyclopedia.com   (Site not responding. Last check: 2007-10-31)
He was a professor at the Univ. of Leipzig (1821-71) and is known for his work on touch and for the formulation of Weber's law—that the increase in stimulus necessary to produce an increase in sensation is not fixed but depends on the strength of the preceding stimulus.
With his brother Eduard Friedrich Weber, 1806-71, he discovered the inhibitory power of the vagus nerve (1845).
For permission to reuse this article, contact Copyright Clearance Center.
www.encyclopedia.com /doc/1E1-Weber-Er.html   (111 words)

  
 Review Text
Ernst Heinrich Weber and Gustav Fechner found that the larger the original intensity of a stimulus, the smaller the jnd of the stimulus.
Basically the jnd is proportional to the original intensity, also known as the standard.
Jnds are percentages known as Weber fractions, and they are the constant relation of the ration of standard and jnd.
www.tjhsst.edu /~mbentz/psych/data.php?section=char.html   (570 words)

  
 Books by David Weber - Apocalypse Troll - 0671577824 college book list   (Site not responding. Last check: 2007-10-31)
David Weber is an American science fiction and fantasy author.In his stories, he creates a consistent and rationally explained technology and society.
Even when dealing with fantasy themes, the magical powers are treated like another technology with supporting rational laws and principles.Many of his stories have militaristic, particularly naval, themes, and fit into the Military science fiction genre.
This artikel David_Weber is licensed under the GNU free Documentation License.
www.bookchaptersummary.com /215427_david-walls-max-anders_08054021011andamp2peter12andamp3johnandjudecollegebooklist.html   (726 words)

  
 weber / Weber (HyperDic hyper-dictionary)   (Site not responding. Last check: 2007-10-31)
weber, Wb A unit of magnetic flux equal to 100,000,000 maxwells
Weber, Carl Maria von Weber, Baron Karl Maria Friedrich Ernst von Weber
Carl Maria von Weber, Baron Karl Maria Friedrich Ernst von Weber
www.hyperdic.net /dic/weber.htm   (203 words)

  
 WEBER Meaning and Definition - Dictionary - eLook.org
WEBER Meaning and Definition - Dictionary - eLook.org
[noun] German physicist and brother of E. Weber; noted for his studies of terrestrial magnetism (1804-1891)
Synonyms: Weber, Carl Maria von Weber, Baron Karl Maria Friedrich Ernst von Weber
www.elook.org /dictionary/weber.html   (94 words)

  
 Ernst Heinrich Weber (1795 - 1878)
He also formulated Weber's law (which later on was extended by Fechner) as well as the theory of signs (Lokalzeichentheorie) Weber's psychophysics then formed the basis for Wundt's psychophysical psychology.
Most of Weber's numerous works were published as academic programmes, mostly under the title "Annotationes anatomicae et physiologicae.
with his brother Wilhelm Weber): Wellenlehre auf Experimenten begründet 1825.
www.uni-leipzig.de /~psy/eng/weber-e.html   (483 words)

  
 Classics in Psychology   (Site not responding. Last check: 2007-10-31)
Biographical information on Weber is not readily available.
For a short biographical sketch compiled from various sources, see Weber, E.H. The Sense of Touch.
Weber, E.H. De pulsu, resorptione, auditu et tactu.
www.thoemmes.com /psych/helmholtz_psy.htm   (928 words)

  
 The Virtue of Faith in Theology, Natural Science, and Philosophy   (Site not responding. Last check: 2007-10-31)
Weber determined that the just noticeable difference (…jnd) for weight discrimination — that is, the minimum amount of difference between two weights necessary to tell them apart — was always an amount equal to 1/30th of the heavier of the weights being compared.
Weber observed similar regularities for other kinds of sensory discriminations — though the specific fraction for the jnd differed for each sense.
Weber suspected, though he did not prove, that a constant factor could be determined for all the other senses as well.
www.stthomas.edu /cathstudies/science/virtue.htm   (7419 words)

  
 Carl Maria von Weber
This artikel Carl_Maria_von_Weber is licensed under the GNU free Documentation License.
Weber is an Italian fuel system manufacturer, owned by Magneti-Marelli
This artikel Weber is licensed under the GNU free Documentation License.
americanliteraturereview.com /118950_carl-m-heintz_088022679x123pers...   (2931 words)

  
 Ernst Heinrich Heinkel --  Encyclopædia Britannica   (Site not responding. Last check: 2007-10-31)
More results on "Ernst Heinrich Heinkel" when you join.
He was awarded half of the Nobel Prize for Physics in 1986 (the other half was divided between Heinrich Rohrer and Gerd Binnig).
The grim realities of war, the travails of German life during and after World War II, and the ironies that plague modern people form the main subject matter of Heinrich Böll's many popular novels, short stories, and essays.
www.britannica.com /eb/article-9039843?tocId=9039843   (555 words)

  
 The Columbia Encyclopedia, Sixth Edition: Weber, Ernst Heinrich @ HighBeam Research   (Site not responding. Last check: 2007-10-31)
The Columbia Encyclopedia, Sixth Edition: Weber, Ernst Heinrich @ HighBeam Research
WEBER, ERNST HEINRICH [Weber, Ernst Heinrich], 1795-1878, German physiologist.
Our archive contains millions of documents from thousands of sources and goes back over 23 years.
www.highbeam.com /library/doc0.asp?DOCID=1E1:Weber-Er&refid=ip_encyclopedia_hf   (148 words)

  
 We Didn't Start the Fire
Ernst Heinrich Weber is known for coining the phrase, just noticeable difference (JND) that refers to the smallest perceptible difference between two sensations.
Weber collected data in support of the general principle that a JND in the intensity of a sensation is a function of the change in the magnitude of a stimulus by a constant factor of its original magnitude.
By linking these relationships to the nervous system, he helped establish the epistemological function of the nervous system in mediating the relationship between mind and the physical environment.
www.niu.edu /acad/psych/Millis/History/2004/PsychologySong.htm   (3629 words)

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