]> 2009/04/07 OpenCyc Knowledge Base Copyright© 2001-2009 Cycorp, Inc., http://www.cyc.com/, Austin, TX, USA This file contains an OWL representation of information contained in the OpenCyc Knowledge Base. The content of this OWL file is licensed under the Creative Commons Attribution 3.0 license whose text can be found at http://creativecommons.org/licenses/by/3.0/legalcode. The content of this OWL file, including the OpenCyc content it represents, constitutes the "Work" referred to in the Creative Commons license. The terms of this license equally apply to, without limitation, renamings and other logically equivalent reformulations of the content of this OWL file (or portions thereof) in any natural or formal language, as well as to derivations of this content or inclusion of it in other ontologies. Mappings between OpenCyc terms and Wikipedia article names provided by Olena Medelyan and Catherine Legg, University of Waikato, NZ under a Creative Commons Attribution 3.0 license. externalID A unique, language-neutral, variable-sized identifier for a concept that can be used to refer unambiguously to that concept across OWL exports or across Cyc inference engines. label A natural-language representation for a concept that is both human readable and readable by the Cyc inference engine. These terms are not guaranteed to refer to the same concept across time but are guaranteed to be consistent within a particular OWL export. Use 'cycAnnot:externalID' for unambiguously referring to a concept across OWL exports or across Cyc inference engines. This is the collection of events consisting of the propogation of electromagnetic radiation and associated with photons, a particle which lacks rest mass. Somewhat paradoxically, light has both a wavelike and a particle-like nature. light Light Mx4rv6bf0ZwpEbGdrcN5Y29ycA Light http://en.wikipedia.org/wiki/Light A collection of events; a subcollection of <a href="http://sw.opencyc.org/2009/04/07/concept/en/Light" class="cyc_term">Light</a>. Every instance of <a href="http://sw.opencyc.org/2009/04/07/concept/en/VisibleLight" class="cyc_term">VisibleLight</a> is an instance of <a href="http://sw.opencyc.org/2009/04/07/concept/en/ElectromagneticRadiation" class="cyc_term">ElectromagneticRadiation</a> having a wavelength approximately between 3800 and 7750 <a href="http://sw.opencyc.org/2009/04/07/concept/en/Angstrom" class="cyc_term">Angstrom</a>s, i.e., light visible to human eyes. Notable specializations include <a href="http://sw.opencyc.org/2009/04/07/concept/en/Moonlight" class="cyc_term">Moonlight</a> and <a href="http://sw.opencyc.org/2009/04/07/concept/en/Rainbow" class="cyc_term">Rainbow</a>. VisibleLight visible light The collection of all sunlight. A type of <a href="http://sw.opencyc.org/2009/04/07/concept/en/Light" class="cyc_term">Light</a>. <a href="http://sw.opencyc.org/2009/04/07/concept/en/Sunlight" class="cyc_term">Sunlight</a> is an <a href="http://sw.opencyc.org/2009/04/07/concept/en/ElectromagneticRadiationTypeByWaveFrequency" class="cyc_term">ElectromagneticRadiationTypeByWaveFrequency</a>. Sunlight sunlight ultraviolet light UltravioletLight A collection of events; a subset of <a href="http://sw.opencyc.org/2009/04/07/concept/en/ElectromagneticRadiation" class="cyc_term">ElectromagneticRadiation</a>. Each element of <a href="http://sw.opencyc.org/2009/04/07/concept/en/UltravioletLight" class="cyc_term">UltravioletLight</a> is an instance of electromagnetic radiation having a wavelength in the range from approximately 1X10^-7 centimeters (10 <a href="http://sw.opencyc.org/2009/04/07/concept/en/Angstrom" class="cyc_term">Angstrom</a>) to 4X10^-5 centimeters (4000 <a href="http://sw.opencyc.org/2009/04/07/concept/en/Angstrom" class="cyc_term">Angstrom</a>), and a frequency of approximately 7.5X10^14 <a href="http://sw.opencyc.org/2009/04/07/concept/en/Hertz" class="cyc_term">Hertz</a> to 3X10^17 <a href="http://sw.opencyc.org/2009/04/07/concept/en/Hertz" class="cyc_term">Hertz</a>. A collection of collections. Each instance of <a href="http://sw.opencyc.org/2009/04/07/concept/en/ElectromagneticRadiationTypeByWaveFrequency" class="cyc_term">ElectromagneticRadiationTypeByWaveFrequency</a> is a specialization of <a href="http://sw.opencyc.org/2009/04/07/concept/en/ElectromagneticRadiation" class="cyc_term">ElectromagneticRadiation</a>. Notable instances of <a href="http://sw.opencyc.org/2009/04/07/concept/en/ElectromagneticRadiationTypeByWaveFrequency" class="cyc_term">ElectromagneticRadiationTypeByWaveFrequency</a> include the collections <a href="http://sw.opencyc.org/2009/04/07/concept/en/RadioWave" class="cyc_term">RadioWave</a>, <a href="http://sw.opencyc.org/2009/04/07/concept/en/XRay" class="cyc_term">XRay</a>, <a href="http://sw.opencyc.org/2009/04/07/concept/en/GammaRay" class="cyc_term">GammaRay</a>, and <a href="http://sw.opencyc.org/2009/04/07/concept/en/UltravioletLight" class="cyc_term">UltravioletLight</a>. type of electromagnetic radiation ElectromagneticRadiationTypeByWaveFrequency This is the collection of events consisting of the propogation of electromagnetic radiation and associated with photons, a particle which lacks rest mass. Somewhat paradoxically, light has both a wavelike and a particle-like nature. light Light electromagnetic radiation ElectromagneticRadiation A specialization of <a href="http://sw.opencyc.org/2009/04/07/concept/en/WavePropagation" class="cyc_term">WavePropagation</a> (q.v.). Each instance of <a href="http://sw.opencyc.org/2009/04/07/concept/en/ElectromagneticRadiation" class="cyc_term">ElectromagneticRadiation</a> is an event that arises from the interaction of an electrical field and a magnetic field. Specializations of <a href="http://sw.opencyc.org/2009/04/07/concept/en/ElectromagneticRadiation" class="cyc_term">ElectromagneticRadiation</a> include <a href="http://sw.opencyc.org/2009/04/07/concept/en/VisibleLight" class="cyc_term">VisibleLight</a>, <a href="http://sw.opencyc.org/2009/04/07/concept/en/RadioWave" class="cyc_term">RadioWave</a>s, and <a href="http://sw.opencyc.org/2009/04/07/concept/en/XRay" class="cyc_term">XRay</a>s. This is the collection of events consisting of the propogation of electromagnetic radiation and associated with photons, a particle which lacks rest mass. Somewhat paradoxically, light has both a wavelike and a particle-like nature. light Light (<a href="http://sw.opencyc.org/2009/04/07/concept/en/wikipediaArticleName" class="cyc_term">wikipediaArticleName</a> THING NAME) means that in <a href="http://sw.opencyc.org/2009/04/07/concept/en/Wikipedia_WebSite" class="cyc_term">Wikipedia_WebSite</a> THING is described by an article with the title NAME wikipediaArticleName Wikipedia Article Name This is the collection of events consisting of the propogation of electromagnetic radiation and associated with photons, a particle which lacks rest mass. Somewhat paradoxically, light has both a wavelike and a particle-like nature. light Light This is the collection of events consisting of the propogation of electromagnetic radiation and associated with photons, a particle which lacks rest mass. Somewhat paradoxically, light has both a wavelike and a particle-like nature. light Light wikipediaArticleURL (<a href="http://sw.opencyc.org/2009/04/07/concept/en/wikipediaArticleURL" class="cyc_term">wikipediaArticleURL</a> THING URL) means that in <a href="http://sw.opencyc.org/2009/04/07/concept/en/Wikipedia_WebSite" class="cyc_term">Wikipedia_WebSite</a> THING is described by an article located at URL Wikipedia Article URL This is the collection of events consisting of the propogation of electromagnetic radiation and associated with photons, a particle which lacks rest mass. Somewhat paradoxically, light has both a wavelike and a particle-like nature. light Light