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An Amici roof prism. An Amici roof prism, named for its inventor, the Italian astronomer Giovanni Battista Amici, is a type of reflecting prism used to deviate a beam of light by 90° while simultaneously inverting the image. It is commonly used in the eyepieces of telescopes as an image erecting system. It is sometimes called an Amici prism or ...
Base (group theory) Let be a finite permutation group acting on a set . A sequence. of k distinct elements of is a base for G if the only element of which fixes every pointwise is the identity element of . [1] Bases and strong generating sets are concepts of importance in computational group theory. A base and a strong generating set (together ...
Gas is a 2004 comedy/drama film directed by Henry Chan.It stars Flex Alexander (One on One, Love... & Other 4 Letter Words) and Khalil Kain (Girlfriends, Love Jones).. Plot. Upon returning to Los Angeles to attend his father's funeral, Damon (Alexander) soon learns that in order to claim his share of the family inheritance he must work alongside his brother, Mookie (Kain) — a former drug ...
Karshi-Khanabad (or K2) is an air base in southeastern Uzbekistan, just east of Karshi. It is home to the 60th Separate Mixed Aviation Brigade of the Uzbek Air Force . The airport is 1,365 feet (416 m) above mean sea level. It has one runway designated 07/25 with a concrete surface measuring 8,196 by 131 feet (2,498 m × 40 m).
Electric discharge in gases occurs when electric current flows through a gaseous medium due to ionization of the gas. Depending on several factors, the discharge may radiate visible light. The properties of electric discharges in gases are studied in connection with design of lighting sources and in the design of high voltage electrical equipment.
In chemistry, an acid–base reaction is a chemical reaction that occurs between an acid and a base.It can be used to determine pH via titration.Several theoretical frameworks provide alternative conceptions of the reaction mechanisms and their application in solving related problems; these are called the acid–base theories, for example, Brønsted–Lowry acid–base theory.
Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element bond to form N 2, a colorless and odorless diatomic gas.