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Hale, George Ellery

(Encyclopedia)Hale, George Ellery, 1868–1938, American astronomer, b. Chicago, grad. Massachusetts Institute of Technology, 1890. He founded and directed three great observatories (Yerkes, Mt. Wilson, and Palomar...

Young, Thomas

(Encyclopedia)Young, Thomas, 1773–1829, English physicist, physician, and Egyptologist. He established (1799) a medical practice in London and was elected (1811) to the staff of St. George's Hospital there. His l...

Elizabeth, queen of Romania

(Encyclopedia)Elizabeth, 1843–1916, queen of Romania, consort of King Carol I, whom she married in 1869. Of German birth, she was the daughter of Hermann, prince of Wied. She completely identified herself with he...

Brugmann, Karl

(Encyclopedia)Brugmann, Karl kärl bro͝okˈmän [key], 1849–1919, German philologist. A professor at Leipzig, Brugmann believed that scientific rules of linguistics do not admit of exceptions. With the help of o...

complexity

(Encyclopedia)complexity, in science, field of study devoted to the process of self-organization. The basic concept of complexity is that all things tend to organize themselves into patterns, e.g., ant colonies, im...

John II, king of Hungary and prince of Transylvania

(Encyclopedia)John II (John Sigismund Zapolya), 1540–71, king of Hungary and prince of Transylvania, son of John I. Through his mother, Isabel (daughter of Sigismund I of Poland), he was related to the Jagiello d...

John I, king of Portugal

(Encyclopedia)John I (John the Great), 1357?–1433, king of Portugal (1385–1433), illegitimate son of Peter I. He was made (1364) grand master of the Knights of Aviz and exercised his influence in opposition to ...

Regensburg

(Encyclopedia)Regensburg rāˈgənsbo͝orkh [key], city (1994 pop. 125,337), Bavaria, SE Germany, a port at the confluence of the Danube (Donau) and Regen rivers. In English it is known as Ratisbon. The city is a c...

Wrangel Island

(Encyclopedia)Wrangel Island or Wrangell Island răngˈgəl [key], Rus. Ostrov Vrangelya, island, 1,740 sq mi (4,507 sq km), in the Arctic Ocean, between the East Siberian Sea and the Chukchi Sea, off NE Russia. It...

vision

(Encyclopedia)CE5 Optic nerve vision, physiological sense of sight by which the form, color, size, movements, and distance of objects are perceived. Defects of vision include astigmatism, color blindness, far...