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Topic: Hermann von Helmholtz

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	Hermann von Helmholtz (Site not responding. Last check: 2007-10-13)
		Hermann von Helmholtz stands for the whole diversity of scientific research with an orientation towards technological practice.
		Hermann Ludwig Ferdinand Helmholtz - at the time still without the "von" - was born in Potsdam on 31 August 1821 as the son of a senior grammar school teacher.
		Helmholtz was the first scientist to measure the wavelengths of ultraviolet light and to calculate the capacity of the light microscope.
	www.helmholtz.de /en/Who_we_are/Hermann_von_Helmholtz.html (580 words)

	Hermann von Helmholtz
		Helmholtz was the eldest of four children and because of his delicate health was confined to home for his first seven years.
		Helmholtz' work in electricity and magnetism revealed his conviction that classical mechanics was probably the best mode of scientific reasoning.
		Helmholtz, on the other hand, was fully conversant with Faraday's laws of electrolysis, which related the amount of current that passed through an electrochemical cell to the equivalent weights of the elements deposited at the poles.
	www.corrosion-doctors.org /Biographies/HelmholtzBio.htm (526 words)

	Hermann von Helmholtz - Wikipedia, the free encyclopedia
		Helmholtz was the son of the Potsdam Gymnasium headmaster, Ferdinand Helmholtz, who had studied classical philology and philosophy, and who was a close friend of the publisher and philosopher Immanuel Hermann Fichte.
		Helmholtz is thought to be the first person to put forward the idea of the heat death of the universe in 1854.
		Helmholtz had in his early refutal of the speculative early nineteenth century tradition of Naturphilosophie stressed the importance of materialism, and was focusing more on the unity of "mind" and body.
	en.wikipedia.org /wiki/Hermann_von_Helmholtz (933 words)

	Hermann von Helmholtz Biography \| World of Health
		Hermann Helmholtz was one of the few scientists to master two disciplines: medicine and physics.
		Helmholtz was born into a poor but scholarly family; his father was an instructor of philosophy and literature at a gymnasium in his hometown of Potsdam, Germany.
		Helmholtz disproved this by stimulating a frog's nerve first near a muscle and then farther away; when the stimulus was farther from the muscle, it contracted just a little slower.
	www.bookrags.com /biography/hermann-von-helmholtz-woh (926 words)

	Hermann Ludwig Ferdinand von Helmholtz by: J.J O'Connor and E. F. Robertson - Athenaeum Library of Philosophy
		Helmholtz was always prepared to admit his mistakes and indeed he did just this three years later when he published new experimental results showing these of his 1852 paper to be incorrect.
		Helmholtz showed that the vortex tubes had to close up and also that the particles in a vortex tube at any given instant would remain in the tube indefinitely so no matter how much the tube was distorted it would retain its shape.
		Helmholtz was aware of the topological ideas in his paper, particularly the fact that the region outside a vortex tube was multiply connected which led him to consider many-valued potential functions.
	evans-experientialism.freewebspace.com /helmholtz02.htm (2158 words)

	Hermann von Helmholtz Association of National Research Centres
		The "Hermann von Helmholtz-Gemeinschaft Deutscher Forschungszentren" (HGF) is the umbrella organization of 15 German large-scale research centres.
		The Helmholtz centres are engaged in research and development in natural science, technology and biological medicine.
		The Helmholtz centres receive 90 percent of their funds from the Federal Government and 10 percent from the respective host Federal State.
	www.euronuclear.org /info/encyclopedia/h/helmholtzassoz.htm (224 words)

	HUMBOLDT-GESELLSCHAFT -> Hermann von Helmholtz (1821-1894) als Kulturträger
		Helmholtz was an important player in the elaboration of the concept of energy and of the field of physics made possible by this conceptual insight.
		Helmholtz may not be seen as the founder of experimental psychology (Gustav Fechner and Wilhelm Wundt are often cited as founders), but he was a very important forerunner.
		It is important to note that Helmholtz was very careful to distance himself from this trend, if for no other reason than the fact that materialism engaged in the kind of metaphysical speculation that he saw as a hindrance to the advance of scientific knowledge.
	www.humboldtgesellschaft.de /druck.php?name=helmholtz (1331 words)

	Helmholtz Resonators (Site not responding. Last check: 2007-10-13)
		Hermann von Helmholtz introduced the resonators in his 1863 classic, On the Sensations of Tone as a Physiological Basis for the Theory of Music.
		Therefore, Helmholtz claimed, even a person with no ear for music, or an unpracticed ear for detecting pitch, could detect a simple tone from a complex mixture of noises such as a spoken vowel, or the sound of a musical instrument.
		Helmholtz made the distinction between complex sound (musical sounds or vocalizations) and "pure tones" central to his investigations of auditory sensation and perception.
	www.psych.utoronto.ca /museum/helmholtz.htm (397 words)

	Hermann von Helmholtz (via CobWeb/3.1 planetlab2.tamu.edu) (Site not responding. Last check: 2007-10-13)
		Image:Helmholtz6333.jpg Hermann Ludwig Ferdinand von Helmholtz (August 31, 1821 – September 8, 1894) was a German physician and physicist.
		Helmholtz was the son of a gymnasium headmaster, Ferdinand Helmholtz, who had studied classical philology and philosophy, and who was a close friend of the publisher and philosoper Immanuel Hermann Fichte.
		Helmholtz Helmholtz, Hermann Helmholtz, Hermann Helmholtz, Hermann von Helmholtz, Hermann von cs:Hermann von Helmholtz de:Hermann von Helmholtz es:Hermann von Helmholtz fr:Hermann von Helmholtz nl:Hermann von Helmholtz ja:&12504;&12523;&12510;&12531;&12539;&12501;&12457;&12531;&12539;&12504;&12523;&12512;&12507;&12523;&12484; ru:&1043;&1077;&1083;&1100;&1084;&1075;&1086;&1083;&1100;&1094;, &1043;&1077;&1088;&1084;&1072;&1085; sl:Hermann Ludwig Ferdinand von Helmholtz
	hermann-von-helmholtz.iqnaut.net.cob-web.org:8888 (639 words)

	Glossary of People: He
		One of the consequences that flowed from Helmholtz' mathematical analysis was that vortices of an ideal fluid were amazingly stable; they could collide elastically with one another, intertwine to form complex knot-like structures, and undergo tensions and compressions, all without losing their identities.
		Helmholtz also did significant work on the mathematics of electrodynamics and spent his last years unsuccessfully trying to reduce all of electrodynamics to a minimum set of mathematical principles, an attempt in which he had to rely increasingly on the supposed mechanical properties of the ether.
		Helmholtz came close to his goal of deducing all electromagnetic effects from properties of the ether, using his vortex hypothesis, and the discovery of radio waves by Hertz in 1888 was seen as confirmation of his theory.
	www.marxists.org /glossary/people/h/e.htm (3557 words)

	hermann von helmholtz and the psychophysics of perception
		Helmholtz's journey perhaps did not take him as far afield as Chekhov's medicine-to-literature, but Helmholtz's interests were undeniably widely varied and eclectic within the general scientific field, an expanse of interests ably noted in Foundations (and responsible in part for its massive girth).
		Hermann von Helmholtz was by any standard a learned, accomplished and respected scientist who explored and excelled in numerous disciplines.
		Helmholtz himself recalled that during this time, a well-known physiologist recoiled in annoyance at the invitation of an equally well-known physicist to participate in one of the latter's experiments.
	www.theater2k.com /HermEssay.html (2522 words)

	Hermann von Helmholtz
		When the great ophthalmologist, A. von Gräfe, first saw the fundus of the living human eye, with its optic disc and blood-vessels, his face flushed with excitement, and he cried, "Helmholtz has unfolded to us a new world!" Helmholtz's contributions to physiological optics are of great importance.
		He was twice married,, first, in 1849, to Olga von Velten (by whom he had two children, a son and daughter), and secondly, in 1861, to Anna von Mohl, of a Würtemberg family of high social position.
		Helmholtz was a man of simple but refined tastes, of noble carriage and somewhat austere manner.
	www.nndb.com /people/445/000072229 (1047 words)

	Physikalisch-Technische Bundesanstalt (PTB)
		Helmholtz studied medicine at the Friedrich Wilhelm Institute (the so-called Pépinière) in Berlin, committing himself to serving for eight years as a medical officer after his studies.
		Helmholtz writes he “enjoyed the purest and greatest happiness earth can offer, it was too wonderful for this world.” “She died by his side,” her sister wrote (who had been living with Helmholtz since 1852).
		So Helmholtz was a lonesome man long before she died, and the prospects of a future with two small children and their grandmother – who was an old woman despite all devotion and willingness to make sacrifices - were very gloomy.
	www.ptb.de /en/publikationen/blickpunkt/interviews/helmholtz.html (620 words)

	Hermann von Helmholtz Beschreibung in Library - Definition und Buch-Tipp. (via CobWeb/3.1 planetlab2.tamu.edu) (Site not responding. Last check: 2007-10-13)
		Hermann Ludwig Ferdinand von Helmholtz (* 31.08 1821 in Potsdam; † 8.09 1894 in Charlottenburg) war ein deutscher Physiologe und Physiker.
		1888 wurde Helmholtz der erste Präsident der neugegründeten Physikalisch-Technischen Reichsanstalt in Charlottenburg.
		Bereits 1842 wies Helmholtz den Ursprung der Nervenfasern aus Ganglienzellen nach.
	hermann_von_helmholtz.know-library.net.cob-web.org:8888 (1242 words)

	Helmholtz Association
		The Helmholtz Association identifies and takes on the grand challenges of society, science and the economy, in particular through the investigation of highly complex systems.
		This is the result of a new agreement between the China Scholarship Council and the Helmholtz Association of German Research Centres, which governs the selection and financing of scholarship holders.
		This was followed by the ceremonious highlight of the evening, the award of the Erwin Schrödinger Prize for interdisciplinary research to a team from the Max-Planck-Institut für Plasmaphysik (IPP) for their ground-breaking achievements in the field of fusion research.
	www.helmholtz.de (803 words)

	Psyography: Biographies on Psychologists (Site not responding. Last check: 2007-10-13)
		Hermann von Helmholtz was born August 31, 1821 in Postsdam, Germany.
		Helmholtz was the eldest of four children and a sickly child that required tutoring at home.
		Hermann was also responsible for the tri-color theory that stated that humans have three visual receptors, which respond to there own colors.
	faculty.frostburg.edu /mbradley/psyography/helmholtz.html (764 words)

	Hermann von Helmholtz, MD (deceased)
		Hermann von Helmholtz was born in Potsdam, Germany.
		To the world, Helmholtz is best known for his doctrine of the conservation of energy, but it was his 1850 invention of the ophthalmoscope that revolutionized ophthalmology.
		Helmholtz’ influence was also felt in acoustics, mathematics, mechanics, electricity, and meteorology, marking him as one of the great scientific minds of the 19th century.
	www.ascrs.org /Awards/Hermann-von-Helmholtz-MD.cfm (189 words)

	Helmholtz, Hermann von (1821-1894) Encyclopedia of Psychology - Find Articles
		In return, Helmholtz was expected to use his medical skills for the good of the government-particularly in army hospitals.
		Over the next 22 years he moved to the universities at Bonn and Heidelberg, and it was during this time that he conducted his major works in the field of medicine.
		Helmholtz had been a sickly child; even throughout his adult life he was plagued by migraine headaches and dizzy spells.
	www.findarticles.com /p/articles/mi_g2699/is_0004/ai_2699000496 (885 words)

	Highbeam Encyclopedia - Search Results for Helmholtz,
		Helmholtz, Hermann Ludwig Ferdinand von HELMHOLTZ, HERMANN LUDWIG FERDINAND VON [Helmholtz, Hermann Ludwig Ferdinand von], 1821-94, German scientist.
		The device was invented by the German physiologist H. von Helmholtz in 1851.
		NRC, Helmholtz of Germany Fund $9M in New Science and Technology Research Projects.
	www.encyclopedia.com /SearchResults.aspx?Q=Helmholtz, (510 words)

	Introductory Note. Hermann von Helmholtz; Translated by Edmund Atkinson. 1909-14. Scientific Papers. The Harvard ...
		Helmholtz early showed mathematical ability, and wished to devote his life to the study of physics; but practical considerations led him to take up medicine, and he became a surgeon in the Prussian army.
		He began the publication of original contributions to science in 1842, and for fifty-two years, till his death in 1894, he continued to produce in an unbroken stream.
		The practice of popular lecturing on scientific subjects was almost unknown in Germany when Helmholtz began, and he did much to give it dignity and to set a standard.
	www.bartleby.com /30/1002.html (277 words)

	Helmholtz, Hermann Ludwig Ferdinand von - HighBeam Encyclopedia (Site not responding. Last check: 2007-10-13)
		Helmholtz, Hermann Ludwig Ferdinand von, 1821-94, German scientist.
		Although known especially as a physicist and biologist, he was also a physician, mathematician, philosopher, and lecturer on popular science.
		Helmholtz was professor of physics at the Univ. of Berlin from 1871 and also director of the physicotechnical institute at Charlottenburg from 1887.
	www.encyclopedia.com /doc/1E1-helmholt.html (320 words)

	Hermann von Helmholtz
		Helmholtz zeigte zudem große praktische Begabung, als er den Augenspiegel erfand, und seine «Lehre von den Tonempfindungen» (1862) gibt eine Theorie der Kombinationstöne an, analysiert die Klangfarbe der Instrumente und wagt sich sogar an eine Harmonielehre heran.
		Nun bestand allerding zu Helmholtz' Zeiten kein Zweifel an der Dreifarbentheorie, was den Schluß nahelegte, daß es doch ein (ideales) Dreieck geben mußte, in dem alle Mischfarben des Spektrums ihren Platz finden.
		Ausgehend von den reinen Grundfarben Rot und Violett verschiebt er — ohne weitere Erläuterung — die Wahrnehmung von reinem Grün zu einem Punkt A und erhält dabei ein Dreieck AVR, in dem nun alle Farbwahrnehmungen enthalten sind, die für einen Beobachter überhaupt möglich werden.
	www.colorsystem.com /projekte/dt/!20HELD.HTM (1047 words)

	Helmholtz Hermann von 1821 1894 Letters of Hermann von Helmholtz to his wife, 1847-1859 edited by Richard L. Kremer. ... (Site not responding. Last check: 2007-10-13)
		Helmholtz Hermann von 1821 1894 Letters of Hermann von Helmholtz to his wife, 1847-1859 edited by Richard L. Kremer.
		Letters of Hermann von Helmholtz to his wife, 1847-1859 / edited by Richard L. Kremer.
		"Biography of Olga (née von Velten) and Hermann Helmholtz" / by Betty Johannes (née von Velten), circa 1902: p.
	www.aip.org /history/catalog/books/14047.html (99 words)

	Hermann von Helmholtz and the Foundations of Nineteenth-Century
		Hermann von Helmholtz and the Foundations of Nineteenth-Century
		Hermann von Helmholtz (1821-1894) was a polymath of dazzling intellectual range and energy.
		Renowned for his co-discovery of the second law of thermodynamics and his invention of the ophthalmoscope, Helmholtz also made many other contributions to physiology, physical theory, philosophy of science and mathematics, and aesthetic thought.
	www.ucpress.edu /books/pages/2795.html (180 words)

	Helmholtz (Site not responding. Last check: 2007-10-13)
		Hermann von Helmholtz graduated from the Medical Institute in Berlin in 1843 and was assigned to a military regiment at Potsdam, but spent all his spare time doing research.
		In 1858 he became professor of anatomy and physiology at Bonn, then in 1871, professor of physics at Berlin.
		Helmholtz investigated the properties of non-Euclidean space and showed that these could be worked with as easily as the geometry of three dimensions.
	physics.rug.ac.be /Fysica/Geschiedenis/Mathematicians/Helmholtz.html (120 words)

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