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Elizabeth II, queen of Great Britain and Northern Ireland

(Encyclopedia)Elizabeth II, 1926–2022, former queen of Great Britain and Northern Ireland (1952–2022), elder daughter and successor of George VI, and Britain's lo...

polo

(Encyclopedia)polo, indoor or outdoor ball and goal game played on horseback. Some historians claim that polo originated in Persia in the 6th cent.; it spread to Turkey, India, and Tibet and, with some modificati...

Popper, Sir Karl Raimund

(Encyclopedia)Popper, Sir Karl Raimund, 1902–94, Anglo-Austrian philosopher, b. Vienna. He became familiar with the Vienna circle of logical positivists (see logical positivism) while a student at the Univ. of Vi...

spring, in geology

(Encyclopedia)spring, in geology, natural flow of water from the ground or from rocks, representing an outlet for the water that has accumulated in permeable rock strata underground. Some of the water that falls as...

Deep Sea Drilling Project

(Encyclopedia)Deep Sea Drilling Project, U.S. program designed to investigate the evolution of ocean basins by core drilling of ocean sediments and underlying oceanic crust. Funded by the National Science Foundatio...

oyster

(Encyclopedia)oyster, bivalve mollusk found in beds in shallow, warm waters of all oceans. The shell is made up of two valves, the upper one flat and the lower convex, with variable outlines and a rough outer surfa...

butter

(Encyclopedia)butter, dairy product obtained by churning the fat from milk until it solidifies. In most areas the milk of cows is the basis, but elsewhere that of goats, sheep, and mares has been used. Butter was k...

sea lion

(Encyclopedia)sea lion, fin-footed marine mammal of the eared seal family (Otariidae). Like the other member of this family, the fur seal, the sea lion is distinguished from the true seal by its external ears, long...

Honolulu

(Encyclopedia)Honolulu hŏnˌəlo͞oˈlo͞o, hōnō– [key], city (2020 pop. 350,964), capital of ...

jellyfish

(Encyclopedia)jellyfish, common name for the free-swimming stage (see polyp and medusa), of certain invertebrate animals of the phylum Cnidaria (the coelenterates). The body of a jellyfish is shaped like a bell or ...