Matthiessen's ratio
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Matthiessen's ratio — For the electron mobility rule, see Matthiessen s rule. In optics, Matthiessen s ratio is the ratio between the distance from the centre of the lens to the objective, versus the lens radius[1]. This is of particular importance in fish, where the… … Wikipedia
photoreception — photoreceptive, adj. /foh toh ri sep sheuhn/, n. the physiological perception of light. [1905 10; PHOTO + RECEPTION] * * * Biological responses to stimulation by light, most often referring to the mechanism of vision. In one celled organisms such … Universalium
Electrical resistance — is a ratio of the degree to which an object opposes an electric current through it, measured in Ohms. Its reciprocal quantity is electrical conductance measured in Siemens. Assuming a uniform current density, an object s electrical resistance is… … Wikipedia
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
Nepal — This article is about the country. For other uses, see Nepal (disambiguation). Federal Democratic Republic of Nepal सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल Sanghiya Loktāntrik Ganatantra Nepāl … Wikipedia
Westridge School (Pasadena) — Westridge School is a private, independent day school for college bound girls located in Pasadena, California, United States. As of July 1, 2008, Interim Head of School is Rosemary C. Evans 71, the first alumna to lead Westridge. [… … Wikipedia
Dennis Rawlins — Born 1937 (age 73–74) Baltimore, Maryland, United States Nationality American Occupation Astronomer, Historian, Publisher Dennis Rawlins (born 1937 in Baltimore, Maryland) is an American astronomer, historian, and publisher … Wikipedia
Gasterosteus aculeatus — Épinoche à trois épines … Wikipédia en Français
Épinoche à trois épines — Gasterosteus aculeatus Épinoche à trois épines … Wikipédia en Français
Gasterosteus aculeatus — Épinoche à trois épines … Wikipédia en Français
