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cloud chamber

(Encyclopedia)cloud chamber, device used to detect elementary particles and other ionizing radiation. A cloud chamber consists essentially of a closed container filled with a supersaturated vapor, e.g., water in ai...

Millay, Edna St. Vincent

(Encyclopedia)Millay, Edna St. Vincent mĭlāˈ [key], 1892–1950, American poet, b. Rockland, Maine, grad. Vassar College, 1917. One of the most popular poets of her era, Millay was admired as much for the bohemi...

Star-Spangled Banner, The

(Encyclopedia)Star-Spangled Banner, The, American national anthem, beginning, “O say can you see by the dawn's early light.” The words were written by Francis Scott Key, a young Washington attorney who during t...

Córdoba, city, Argentina

(Encyclopedia)Córdoba kôrˈdōvä [key], city, capital of Córdoba prov., central Argentina, on the Río ...

Davidson, George

(Encyclopedia)Davidson, George, 1825–1911, American geographer and astronomer, b. England. From 1845 to 1895 he was on the staff of the U.S. Coast and Geodetic Survey. He charted (1850–60) the U.S. Pacific coas...

Davis, Charles Henry

(Encyclopedia)Davis, Charles Henry, 1807–77, American naval officer and scientist, b. Boston. Appointed a midshipman in 1823, Davis directed operations of the Coast Survey for a time along the New England coast. ...

Chambers, Sir William

(Encyclopedia)Chambers, Sir William, 1723–96, English architect, b. Gothenburg, Sweden. He traveled extensively in the East Indies and in China making drawings of gardens and buildings, many of which were later p...

McDonald, Arthur Bruce

(Encyclopedia)McDonald, Arthur Bruce, 1943–, Canadian astrophysicist, Ph.D. California Institute of Technology, 1969. McDonald was a researcher at the Chalk River Nuclear Laboratories in Ottawa, Canada, from 1970...

Lowell, Percival

(Encyclopedia)Lowell, Percival, 1855–1916, American astronomer, b. Boston, grad. Harvard, 1876; brother of Abbott Lawrence Lowell and Amy Lowell. He visited Korea and Japan, where he acted as counselor and foreig...

Penobscot, river, United States

(Encyclopedia)Penobscot pənŏbˈskŏt [key], river, 350 mi (563 km) long, rising in numerous lakes in central Maine and flowing generally east in four branches, uniting, then flowing S into Penobscot Bay; longest ...