achromatic map

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• colour — /kul euhr/, n., adj. v.t., v.i. Chiefly Brit. color. Usage. See or1. * * * I Aspect of any object that may be described in terms of hue, brightness, and saturation. It is associated with the visible wavelengths of electromagnetic radiation, which …   Universalium

• List of Russian people — The Millennium of Russia monument in Veliky Novgorod, featuring the statues and reliefs of the most celebrated people in the first 1000 years of Russian history …   Wikipedia

• Discovery of Neptune — New Berlin Observatory at Linden Street, where Neptune was discovered observationally. Neptune was mathematically predicted before it was directly observed. With a prediction by Urbain Le Verrier, telescopic observations confirming the existence… …   Wikipedia

• Timeline of telescopes, observatories, and observing technology — Timeline of telescopes, observatories, and observing technology.Before Common Era (B.C.)2100*Xiangfen Astronomical Observatory, Xiangfen County, Linfen City, Shanxi Province, China 1100* 11th 7th century B.C., Zhou dynasty astronomical… …   Wikipedia

• Johann Wilhelm Meigen — (3 May 1764 – 11 July 1845) was a German entomologist famous for his pioneering work on Diptera. Contents 1 Life 1.1 …   Wikipedia

• Roger Joseph Boscovich — Infobox Scientist caption=Portrait by Robert Edge Pine, London, 1760. dead=dead birth date=birth date|1711|5|18 birth place = Dubrovnik, Republic of Ragusa death date=death date|1787|2|13 death place = Milan, Duchy of Milan residence = Milan… …   Wikipedia

• HSL and HSV — Fig. 1. HSL (a–d) and HSV (e–h). Above (a, e): cut away 3D models of each. Below: two dimensional plots showing two of a model’s three parameters at once, holding the other constant: cylindrical shells (b, f) of constant saturation, in this case… …   Wikipedia

• 1733 in science — The year 1733 in science and technology involved some significant events.Inventions* The flying shuttle loom was invented by John Kay, which made weaving faster and increased demand for yarn. * The perambulator or pram (a baby carriage) was… …   Wikipedia

• Dunsink Observatory — The Dunsink Observatory is an astronomical observatory established in 1785 in the townland of Dunsink near the city of Dublin, Ireland.[1] Its most famous director was …   Wikipedia

• Transformation optics — Electromagnetism Electricity · …   Wikipedia

• eye, human — ▪ anatomy Introduction  specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit       The eye is protected from mechanical injury… …   Universalium