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	Michel-Eugene Chevreul
		Chevreul also discovered and named olein[?], the liquid part of any fat, and stearin[?], a white substance found in the solid parts of most animal and vegetable fats.
		A gold medal was minted for the occasion of Chevreul's 100th birthday in 1886, and it was celebrated as a national event.
		Ironically, Chevreul began to study the effects of ageing on the human body shortly before his death at the grand age of 102.
	www.ebroadcast.com.au /lookup/encyclopedia/mi/Michel-Eugene_Chevreul.html (221 words)

	Michel Eugène Chevreul
		Chevreul trained as a chemist, and in 1824 was appointed as director of Gobelin, the famous carpet manufacturer.
		Chevreul was able to establish a difference between the two ways in which simultaneous contrast occurred and spoke of changes in intensity as well as "optical composition".
		Chevreul was convinced that the many different colour hues and their harmony could be defined by means of the relationships between numbers, and he wished his colour-system to become a suitable instrument, available to all artists using coloured materials.
	www.colorsystem.com /projekte/engl/17chee.htm (1120 words)

	CATHOLIC ENCYCLOPEDIA: Michel-Eugene Chevreul
		Chevreul went to Paris at the age of seventeen and obtained a place in the laboratory of Vauquelin, a chemical-manufacturer.
		Chevreul was able to deduce from a vast number of his own observations the laws governing changes in intensity of tone and shade or modification of colour, and particularly the influence of one colour on another in juxtaposition.
		Chevreul will not occupy a place in the history of chemistry as high as his fellow-countryman and contemporary, Dumas, he nevertheless suggests one of the best examples of the union of research with technical practice resulting in changes great enough to affect the history of nations.
	www.newadvent.org /cathen/03650b.htm (776 words)

	Michel-Eugène Chevreul
		Educated in his native town at the Ecole Centrale, formerly the university, Chevreul went to Paris at the age of seventeen and obtained a place in the laboratory of Vauquelin, a chemical-manufacturer.
		Chevreul's position as director of the Gobelins, to which he had been appointed by Louis XVIII, led to his important discoveries, both in the chemistry of dyeing, previously little understood, and in the physics of colour and colour effect.
		While Chevreul will not occupy a place in the history of chemistry as high as his fellow-countryman and contemporary, Dumas, he nevertheless suggests one of the best examples of the union of research with technical practice resulting in changes great enough to affect the history of nations.
	www.catholicity.com /encyclopedia/c/chevreul,michel-eugene.html (663 words)

	Chevreul : his work on chemistry of fats and dying
		In this memoir, Chevreul coined the term "cholesterine" for the crystalline substance he purified from biliary calculi and the term "cetine" for the spermaceti.
		In the same year, Chevreul gave in his first famous book, "Recherches chimiques sur les corps gras d'origine animale", a systematic presentation of his work on fats with comprehensive details on the experimental procedures he had used for 10 years and theoretical conclusions on the nature of fats and of saponification.
		In this original work, Chevreul presented for the first time a model of a complete set of research in organic chemistry while, in 1823, methods of chemical investigation were poorly developed.
	www.cyberlipid.org /chevreul/work0003.htm (2132 words)

	chevreul-life
		In chemistry, Chevreul's fame stems chiefly from his investigations of the structure and properties of lipids, which culminated in his "Recherches chimiques sur les corps gras d'origine animale" published in Paris in 1823.
		Chevreul was awarded a 12,000 gold francs prize by the Society for the Advancement of Industry.
		Chevreul was elected a member of the Académie des Sciences in 1826 and was elected to the presidency of the Académie in 1839 and again in 1867.
	www.cyberlipid.org /chevreul/life0002.htm (1153 words)

	Michel Eugene Chevreul - LoveToKnow 1911
		MICHEL EUGENE CHEVREUL (1786-1889), French chemist, was born, on the 31st of August 1786, at Angers, where his father was a physician.
		At about the age of seventeen he went to Paris and entered L. Vauquelin's chemical laboratory, afterwards becoming his assistant at the natural history museum in the Jardin des Plantes.
		Chevreul was a determined enemy of charlatanism in every form, and a complete sceptic as to the "scientific" psychical research or spiritualism which had begun in his time (see his De la baguette divinatoire, et des tables tournantes, 1864).
	www.1911encyclopedia.org /Michel_Eugene_Chevreul (347 words)

	Georges-Pierre Seurat - Wikipedia, the free encyclopedia
		Chevreul discovered that two colors juxtaposed, slightly overlapping or very close together, would have the effect of another color when seen from a distance.
		Chevreul also realized that the 'halo' that one sees after looking at a color is actually the opposing color.
		Whereas the theories of Chevreul are based on Newton's thoughts on the mixing of light, Rood's writings are based on the work of Helmholtz, and as such he analyzed the effects of mixing together and juxtaposing material pigments.
	en.wikipedia.org /wiki/Georges-Pierre_Seurat (1589 words)

	Michel Eugène Chevreul - Definition, explanation
		Michel Eugène Chevreul (August 31, 1786 – April 9, 1889) was an important French chemist whose work with fatty acids led to early applications in the fields of art and science.
		Ironically, Chevreul began to study the effects of ageing on the human body shortly before his death at the grand age of 102 which occurred in Paris on the 9th of April 1889.
		Chevreul's work addressed painting with the aim of reproducing nature as closely as possible, by separating effects of light and chiaroscuro, which the artist must repeat, from those of color contrast, which would apply to the paint's own color and so be exaggerated.
	www.calsky.com /lexikon/en/txt/m/mi/michel_eugene_chevreul.php (645 words)

	Chevreul's Report on the Mysterious Oscillations of the
		An extraordinary paper written in 1833 by the French chemist Michel-Eugene Chevreul on his experiments and interpretation of the "magical pendulum" is remarkable in its prescience and astute, rational understanding of the nature of the true source of the pendulum movement.
		In 1853 the French Academy of Sciences appointed Chevreul chairman of a three-man committee charged with providing the public with a scientific explanation of the apparently spontaneous movements of the divining rod, the pendulum and--particularly during seances--small tables.
		The second is Joseph Jastrow's article on Chevreul as a psychologist (Jastrow 1937), which, incidentally, includes Live photographs of Chevreul in 1886, one in which he is working alone and four in which he is interacting with others.
	www.encyclopedia.com /doc/1G1-76881170.html (2604 words)

	Chevreul, Michel
		Michel-Eugène Chevreul was a chemist whose career spanned the greater part of the nineteenth century.
		Chevreul's career as a scientist began at age seventeen when he became an assistant in the laboratory of Louis-Nicolas Vauquelin at the Muséum National d'Histoire Naturelle in Paris.
		Chevreul's career exemplifies the enormous strides made in the understanding of chemistry during the nineteenth century.
	www.chemistryexplained.com /Ce-Co/Chevreul-Michel.html (459 words)

	Architectonics: Michel-Eugene Chevreul
		Chevreul (1786-1889), a French chemist, is most well known for his early work on the chemistry of fats.
		Chevreul, whose reputation as a chemist had already been secured by his work with fats, was hired as director of the dye plant of Gobelin Tapestry Works in Paris.
		Rather, Chevreul discovered that the appearance of a yarn was determined not only by the color with which it was dyed, but by the colors of the surrounding yarns, a concept known as simultaneous contrast.
	www.princeton.edu /~freshman/science/chevreul (175 words)

	Michel-Eugčne Chevreul
		Interestingly, Chevreul byl také vlivný ve světě umění.
		Chevreul také objevoval a jmenoval olein, kapalnou část nějakého tuku a stearin, bílou substanci nalezenou v pevných dílech většiny zvířete a rostlinné tuky.
		Chevreul dostal dopisy doporučení od mnoha hlav státu a monarchů, včetně Královny Victorie.
	wikipedia.infostar.cz /m/mi/michel_eugene_chevreul_1.html (187 words)

	Bloomfield Science Museum Jerusalem/Michel Eug?ne Chevreul
		Chevreul's work on fats was part of his dedication to the chemistry of "natural" substances.
		Chevreul's work on another group of organic substances, dyes, let to his being appointed in 1824 as director of the dye plant of Gobelin Tapestry Works in Paris, the most famous tapestry maker the world has seen.
		Chevreul's wide interests let him to a study of divining rods (the Y - shaped sticks used to locate underground water); to an attack on the fakery of spiritualism (but he remained a faithful Catholic); and finally, as he approached his hundredth birthday, to studies of the psychology of ageing.
	www.mada.org.il /website/html/eng/2_1_1-20.htm (763 words)

	forgetomori
		Chevreul then conducted a series of experiments, among them the simplest of all, but that nobody had done until then.
		Chevreul discovered the simple basic fact that he was indeed the one moving the pendulum and it only reflected his own knowledge.
		Chevreul’s pendulum and all the other applications of the ideomotor effect are also evidence of the illusion of our consciouness: our unconscious may behave as a sentient being, fooling even ourselves.
	forgetomori.com (1346 words)

	Chevreul's pendulum - the amazing phenomena
		Michel-Eugene Chevreul was a well known French natural scientist who in 1833 investigated the ‘occult’ pendulum phenomenon and gave it a plausible scientific explanation.
		Chevreul found that if you imagine something intensely, then the human body behaves in a way as if the imagined situation has already come to pass.
		The principle that Chevreul’s scientific pendulum investigation uncovered - that the human body reacts physically and chemically to imagined situations - is behind a host of important psychological reactions, e.g.
	www.hypnoanalysis.com /articles_chevreuls-pendulum.html (622 words)

	Untitled Document
		Seurat and his followers, in developing their unique style, were influenced by a number of contemporary scientists in the fields of color theory and color perception.
		In particular, Eugene Chevreul and Ogden Rood played an important role with their theories on the visual impact of different combinations of color.
		In 1839, Eugène Chevreul, a scientist-writer, introduced his theory of optical color mixing, stating that colors are enhanced, defined and even, changed by surrounding colors (the idea of simultaneous contrast).
	www.brown.edu /Courses/CG11/2007/Catherine_Johnson/ColorTheories.html (793 words)

	handprint : watercolor books
		Chevreul claimed to predict the visual effect of simultaneous contrast across all these situations with a single rule: if two color areas are seen close together in space or time, each will shift in hue and value as if the visual complementary color of the neighboring or preceding color were mixed with it.
		Chevreul noted that these apparent color shifts are strongest when the color areas are viewed side by side rather than far apart, are equal in size and not too large, and are viewed under subdued light.
		Chevreul claims, for example, that the "primary" colors are created by "pure" red, yellow and blue light, and that contiguous colors "take away colored rays" from each other.
	www.handprint.com /HP/WCL/book3.html (9871 words)

	niepce.doc
		One wonders what thoughts were running through Michele Chevreul’s mind when in 1842, as head of a commission appointed by the Ministry of the Army, he traveled to Montauban, charged with evaluating a proposal on the dyeing of uniforms made by one lieutenant of the dragoons, Claude-Félix-Abel Niepce de Saint Victor.
		We know only that Michele-Eugène Chevreul, already 56 and Director of Dyeing at the Manufacture Nationale des Gobelins, had been appointed by the Ministry of the Army to evaluate Niepce’s proposal, whatever it may have been, and that Niepce was then stationed at Montauben.
		Chevreul encouraged his protégé to work on the development of new photographic processes and emulsions and even today Niepce is credited as having been first to use albumen in photographs and the first to produce negatives on glass (sometimes one hears steel, maybe both).
	www.physics.princeton.edu /~trothman/niepce.html (2793 words)

	Notebook
		Chevreul was drawn into a study of color soon after his appointment to the royal tapestry workshops in Paris.
		Chevreul's duty as dye chemist was threefold: to find ways of dyeing yarns in an unprecedented variety of colors and "tones" of colors; to dye them with dyes that were reasonably fast [nonfading]; and to find a way of classifying them.
		Chevreul's discoveries would certainly be of great value to the Impressionists 30 years later, and especially in the early 1880s, to Seurat and other Neo-Impressionists whose way of placing colors side by side in small points [pointillism] owed much to Chevreul and even more to Ogden Rood.
	www.noteaccess.com /Texts/Harlan/HaCS.htm (2665 words)

	Goethe and Chevreul: Simultaneous Contrast
		Chevreul was hired by the Gobelin Tapestry factory to investigate the fading of their tapestry threads.
		In his 1839 book, De la Loi du Contraste SimultanÃ© des Couleurs, Chevreul shows that the fading is not fading at all, but instead due to simultaneous contrast between adjacent colored threads.
		Successive contrast, such as that used by the 20th century painter Bridget Riley, is the complement of simultaneous contrast but delayed in time.
	www.webexhibits.org /colorart/simultaneous.html (376 words)

	Chevreul, Michel-Eugène (Site not responding. Last check: )
		Chevreul was born in Angers, Maine-et-Loire, and studied in Paris.
		He realized that the soapmaking process is the treatment of a glyceryl ester of fatty acids with an alkali to form fatty acid salts (soap) and glycerol.
		Chevreul determined the purity of fatty acids by measuring their melting points, and constancy of melting point soon became a criterion of purity throughout preparative and analytical organic chemistry.
	www.cartage.org.lb /en/themes/Biographies/MainBiographies/C/Chevreul/1.html (206 words)

	Michel Eugène Chevreul
		Chevreul fut élu à l’Académie des sciences en 1826 et y demeura pendant 63 ans.
		Chevreul a longuement étudié les corps gras ce qui l’amena à poursuivre l’évolution de ce domaine de la chimie.
		Chevreul a également étudié énormément le phénomène des couleurs aux cours de sa vie.
	mendeleiev.cyberscol.qc.ca /chimisterie/2002-2003/LCloutier.html (1271 words)

	We appraise, authenticate and issue certificates of authenticity for paintings by Georges-Pierre Seurat (Site not responding. Last check: )
		Seurat's paintings were considered a departure from much of the other art of his time because he was one of the first to use scientific principles to create aesthetically-pleasing works.
		Seurat was familiar with the writings of scientists such as Eugene Chevreul, Ogden Rood and David Sutter, who wrote about the effects of color on optical perception.
		Chevreul was among the first to explain that, when certain contrasting colors were placed in close proximity to one another, or even overlapped, the human eye perceives a third color when viewed from a distance.
	www.artexpertswebsite.com /artists/seurat.shtml (468 words)

	CHEVREUL, Michel Eugène., De la loi du contraste simultané des couleurs, et de l'assortiment des objets colorés, ... (Site not responding. Last check: )
		First edition of Chevreul's seminal work, the issue with the coloured disks on grey, and fl backgrounds, and with coulour printing on plates 2 and 3.
		Chevreul's law was not primarily a product of the scientific notion of the origin of colours, although he did introduce his readers to the basic tenets of Newtonian theory.
		The neo-impressionist painters derived their methods of painting from Chevreul's principles, applying separate touches of pure colors to the canvas and allowing the eye of the observer to combine them' (DSB).
	www.polybiblio.com /watbooks/16.html (873 words)

	[No title]
		When a client gave Chevreul a fabric swatch of her yellow curtains, for example, he was expected to incorporate that exact shade into the client's tapestry.
		Chevreul discovered that the yellow in the carpet had been influenced or manipulated by the other colors alongside it, so that it only appeared different than the yellow of the curtains.
		Chevreul further discovered that when looking at any given color, the eye simultaneously demands that the opposite or contrasting color on the color wheel be generated.
	www.cbn.com /LivingTheLife/Features/BetterThanEver/tt_colorhistory.asp (1812 words)

	Chevreul Illusion
		However, the phenomenon might be better called the Chevreul Illusion after the scientist who first described it.
		Chevreul was a very influential figure for color theory and his work influenced many artists.
		The Chevreul effect happens in the environment, The different ranges appeared darker at the top and brighter near the horizon.
	perceptualstuff.org /chevreul.html (133 words)

	Georges Seurat. Shop in the shop in my E-shop. Print on demand by Art.com
		Chevreul discovered that two colors juxtaposed, slightly overlapping or very close together, would have the effect of another color when viewed at a distance.
		Chevreul also realized that the 'halo' that one sees after looking at a color is actually the opposing color.
		Whereas the theories of Chevreul are based on Newton's thoughts on the mixing of light, Rood's writings are based on the work of Helmholtz, and as such he analyzed the effects of mixing together and juxtaposing material pigments.
	www.lonvig.dk /e-shop-art-com-stores-seurat.htm (1552 words)

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