Young-Helmholtz theory — Young Helm·holtz theory yəŋ helm .hōlts n a theory in color vision: the eye has three separate elements each of which is stimulated by a different primary color Young Thomas (1773 1829) British physician, physicist, and Egyptologist. Young is… … Medical dictionary
young-helmholtz theory — ˈyəŋˈhel]mˌhōlts, ˈheu̇] noun Usage: usually capitalized Y&H Etymology: Thomas Young died 1829 English physician and physicist and Hermann L. F. von Helmholtz died 1894 German physicist : a theory in color vision: the eye has three separate… … Useful english dictionary
theory — A reasoned explanation of known facts or phenomena that serves as a basis of investigation by which to seek the truth. SEE ALSO: hypothesis, postulate. [G. theoria, a beholding, speculation, t., fr. theoros, a beholder] adsorption t. of narcosis… … Medical dictionary
Young, Thomas — born June 13, 1773, Milverton, Somerset, Eng. died May 10, 1829, London English physicist. Trained as a physician, he practiced medicine at St. George s Hospital (from 1811 until his death) but spent much of his time on scientific research. He… … Universalium
Helmholtz — Hermann L.F. von, German physician, physicist, and physiologist, 1821–1894. See H. axis ligament, H. energy, H. theory of accommodation, H. theory of color vision, H. theory of hearing, H. Gibbs theory, Gibbs H. equation, Young H. theory of color … Medical dictionary
Young — William John, 20th century Australian biochemist. See Harden Y. ester. Thomas, English physician and physicist, 1773–1829. See Y. modulus, Y. rule, Y. Helmholtz theory of color vision. Hugh H., U.S. urologist, 1870–1945. See Y. prostatic tractor … Medical dictionary
Hermann von Helmholtz — Infobox Scientist name = Hermann von Helmholtz |225px image width = 225px caption = Hermann Ludwig Ferdinand von Helmholtz birth date = birth date|1821|8|31|mf=y birth place = Potsdam, Kingdom of Prussia residence = Germany nationality = German… … Wikipedia
Thomas Young (scientist) — Infobox Scientist name = Thomas Young box width = image width = 240px caption = birth date = birth date|df=yes|1773|06|13 birth place = Milverton, Somerset, England death date = death date and age|df=yes|1829|05|10|1773|06|13 death place = London … Wikipedia
Young — [jʌȖ], 1) Andrew, amerikanischer Politiker, * New Orleans (La.) 12. 3. 1932; kongregationistischer Geistlicher, engagierte sich als Afroamerikaner in der Bürgerrechtsbewegung, in der er den gemäßigten Flügel repräsentierte, besonders für die … Universal-Lexikon
Helmholtz, Hermann von — ▪ German scientist and philosopher Introduction original name Hermann Ludwig Ferdinand Helmholtz born Aug. 31, 1821, Potsdam, Prussia [Germany] died Sept. 8, 1894, Charlottenburg, Berlin, Ger. German scientist and philosopher who made… … Universalium
