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Bradley, Francis Herbert
(Encyclopedia)Bradley, Francis Herbert, 1846–1924, English philosopher. He was educated at Oxford, where he became a fellow of Merton College in 1876. His works include Ethical Studies (1876), Principles of Logic...adenoids
(Encyclopedia)adenoids ădˈənoidzˌ [key], common name for the pharyngeal tonsils, spongy masses of lymphoid tissue that occupy the nasopharynx, the space between the back of the nose and the throat. Normally the...Vulcan, in astronomy
(Encyclopedia)Vulcan, in astronomy, hypothetical planet whose existence was proposed by Le Verrier to explain part of the advance of the perihelion of Mercury, not all of which could be accounted for by gravitation...Pavilion Lake
(Encyclopedia)Pavilion Lake, lake, 3.6 mi (5.8 km) long, 2,625 ft (800 m) wide, and 213 ft (65 m) deep at its maximum depth, in Marble Canyon at the S end of the Marble Range near Cache Creek, S British Columbia, C...peritoneum
(Encyclopedia)peritoneum pĕrətənēˈəm [key], multilayered membrane which lines the abdominal cavity, and supports and covers the organs within it. The part of the membrane that lines the abdominal cavity is ca...Sitter, Willem de
(Encyclopedia)Sitter, Willem de vĭlˈəm də sĭtˈər [key], 1872–1934, Dutch astronomer and mathematician. He was professor from 1908 at the Univ. of Leiden and in 1919 became director of its observatory. His ...rancheria
(Encyclopedia)rancheria ränchāˈrēä [key], type of communal settlement formerly characteristic of the Yaqui Indians of Sonora, Mexico, and of various small Native American groups of the SW United States, especi...avionics
(Encyclopedia)avionics āˌvēŏnˈĭks [key], electronic instruments used in air or space flight; also the design and production of such instruments. Early planes had few instruments, but as aviation and aircraft ...topology
(Encyclopedia) CE5 Möbius strip: On the ordinary flat loop (A), an ant walking along the middle of the strip will pass only around the outside of the strip. If the strip is cut along the dotted line, twisted onc...Mars, in astronomy
(Encyclopedia)Mars, in astronomy, 4th planet from the sun, with an orbit next in order beyond that of the earth. Mars has two natural satellites, discovered by Asaph Hall in 1877. The innermost of these, Phobos...Browse by Subject
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