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Steitz, Thomas Arthur

(Encyclopedia) Steitz, Thomas Arthur, 1940–2018, American biophysicist and biochemist, b. Milwaukee, Ph.D. Harvard, 1966. Steitz was a professor at Yale from 1970 and a researcher at the Howard…

Challenger expedition

(Encyclopedia) Challenger expedition, British oceanographic expedition under the direction of the Scottish professor Charles Wyville Thompson and the British naturalist Sir John Murray. Taking place…

echo sounder

(Encyclopedia) echo sounder, an older instrumentation system for indirectly determining ocean floor depth. Echo sounding is based on the principle that water is an excellent medium for the…

Ramakrishnan, Venkatraman

(Encyclopedia) Ramakrishnan, Venkatraman, 1952–, American molecular biologist, b. India, Ph.D. Ohio Univ., 1976. He was a researcher at Oak Ridge National Laboratory (1982–83) and at Brookhaven…

geomorphology

(Encyclopedia) geomorphology, study of the origin and evolution of the earth's landforms, both on the continents and within the ocean basins. It is concerned with the internal geologic processes of…

British Indian Ocean Territory Map

  British Indian Ocean Territory Profile: History · Government · Economy · Population €¦ British Indian Ocean Territory Information Encyclopedia: British…

Heard Island and McDonald Islands Map

  Heard Island and McDonald Islands Profile: History · Government · Economy · Population €¦ Heard Island and McDonald Islands Information Almanac: Heard…

South America: Maps and Online Resources

South America is the fourth largest continent in the world, situated in the Western Hemisphere and Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. It is surrounded…

Hudson, Henry

(Encyclopedia) Hudson, Henry, fl. 1607–11, English navigator and explorer. He was hired (1607) by the English Muscovy Company to find the Northeast Passage to Asia. He failed, and another attempt (…

Barnard, Frederick Augustus Porter

(Encyclopedia) Barnard, Frederick Augustus Porter, 1809–89, American educator and mathematician, b. Sheffield, Mass., grad. Yale, 1828. After tutoring at Yale and teaching in institutions for the…