The Grotthuss–Draper law (also called Principle of Photochemical Activation) states that only that light which is absorbed by a system can bring about a photochemical change. It was first proposed in 1817 by
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grotthuss-draper law — ˈgrȯt]ˌhu̇s]ˈdrāpə(r) , ˈgrät], ]ˌhüs] noun Usage: usually capitalized G&D Etymology: after Theodor von Grotthuss died 1822 German physicist and John W. Draper died 1882 American chemist : a statement in physical chemistry: radiation produces… … Useful english dictionary
Theodor Grotthuss — Freiherr Christian Johann Dietrich Theodor von Grotthuß Theodor von Grotthuß Born January 20, 1785(1785 01 20) … Wikipedia
John William Draper — Infobox Scientist name = John William Draper box width = image width =150px caption = John William Draper birth date = May 5, 1811 birth place = St. Helens, Merseyside, England death date = January 4, 1882 death place = Hastings on Hudson, New… … Wikipedia
Photoelectrochemical processes — Photons emitted in a coherent beam from a laser Composition {{{composition}}} Interactions Electromagnetic, Optical, C … Wikipedia
Scientific phenomena named after people — This is a list of scientific phenomena and concepts named after people (eponymous phenomena). For other lists of eponyms, see eponym. NOTOC A* Abderhalden ninhydrin reaction Emil Abderhalden * Abney effect, Abney s law of additivity William de… … Wikipedia
List of multiple discoveries — Main article: Multiple discovery Copernicus … Wikipedia
radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… … Universalium
Photochemistry — Photochemistry, a sub discipline of chemistry, is the study of chemical reactions that proceed with the absorption of light by atoms or molecules.[1]. Everyday examples include photosynthesis, the degradation of plastics and the formation of… … Wikipedia
