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Q, letter of the alphabet

(Encyclopedia)Q, 17th letter of the alphabet, corresponding to the koppa of western Greek alphabets. U must follow the letter in English (e.g., queen, question), and the combination properly represents a sound much...

Jülich, town, Germany

(Encyclopedia)Jülich, town (1994 pop. 31,780), North Rhine–Westphalia, W Germany. It has some light industry and is the seat of a nuclear research center. Originally a Roman settlement known as Juliacum, Jülich...

Brookfield

(Encyclopedia)Brookfield. 1 Village (2020 pop. 19,476), Cook co., NE Ill., a residential suburb of Chicago; inc. 1893. The noted Chicago Zoological Park (Brookfield ...

Martins, Peter

(Encyclopedia)Martins, Peter, 1946–, Danish ballet dancer and choreographer. He studied at the School of the Royal Danish Ballet and performed with its company (1965–69). In 1969 he joined the New York City Bal...

Malus, Étienne Louis

(Encyclopedia)Malus, Étienne Louis ātyĕnˈ lwē mälüsˈ [key], 1775–1812, French artillery officer and physicist. In 1810 he stated his discovery of the polarization of light by reflection and published a me...

quantum theory

(Encyclopedia)quantum theory, modern physical theory concerned with the emission and absorption of energy by matter and with the motion of material particles; the quantum theory and the theory of relativity togethe...

Hero, in Greek mythology

(Encyclopedia)Hero, in Greek mythology, priestess of Aphrodite in Sestos. Her lover, Leander, swam the Hellespont nightly from Abydos to see her. During a storm the light by which she guided him blew out, and he dr...

corona, in astronomy

(Encyclopedia)corona, luminous envelope surrounding the sun, outside the chromosphere. Its density is less than one billionth that of the earth's atmosphere. The corona is visible only at the time of totality durin...

Garden Grove

(Encyclopedia)Garden Grove, city (2020 pop. 171,949), Orange co., S Calif., a suburb of Long Beach and Los Angeles, on the Santa Ana River; founded 1877, inc. 1956. M...

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