- Michel-Levy chart
- A chart relating thickness, birefringence, and retardation so that any one of these variables can be determined for an anisotropic fiber when the other two are known.
Forensic science glossary. John C. Brenner . 2012.
Forensic science glossary. John C. Brenner . 2012.
Auguste Michel-Lévy — Infobox Scientist name = PAGENAME box width = image width =150px caption = PAGENAME birth date = August 7, 1844 birth place = Paris death date = September 27, 1911 death place = residence = citizenship = nationality = French ethnicity = field =… … Wikipedia
Afwillite — is a calcium hydroxide nesosilicate mineral with formula Ca3Si2O4(OH)6. It occurs as glassy, colorless to white prismatic monoclinic crystals. Its Mohs scale hardness is 4.5. It occurs as an alteration mineral in contact metamorphism of limestone … Wikipedia
Conoscopic interference pattern — This page is about the geology/optical mineralogy term. For general information about interference, see Interference (wave propagation) or Interference patterns. A conoscopic interference pattern or interference figure is the best way to… … Wikipedia
compensator, full-wave — (red plate) A compensator using a plate of gypsum, selenite, or quartz, which introduces a fixed retardation between 530 to 550 nm (approximately the retardation of the first order red color on the Michel Levy chart) … Forensic science glossary
dispersion of birefringence — The variation of birefringence with wavelength of light. When dispersion of birefringence is significant in a particular fiber, anomalous interference colors not appearing in the regular color sequence of the Michel Levy chart may result.… … Forensic science glossary
interference colors — Colors produced by the interference of two out or phase rays of white light when a birefringence material is observed at a nonextinction position between crossed polars. The retardation at a particular point in a birefringent fiber may be… … Forensic science glossary
Optical mineralogy — A petrographic microscope, which is an optical microscope fitted with cross polarizing lenses, a conoscopic lens, and compensators (plates of anisotropic materials; gypsum plates and quartz wedges are common), for crystallographic analysis.… … Wikipedia
Ceramography — is the art and science of preparation, examination and evaluation of ceramic microstructures.[1] Ceramography can be thought of as the metallography of ceramics. The microstructure is the structure level of approximately 0.1 to 100 µm, between… … Wikipedia
performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical. The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains … Universalium
literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… … Universalium