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Boscovich, Ruggiero Giuseppe
(Encyclopedia)Boscovich, Ruggiero Giuseppe ro͞od-jāˈrō jo͞ozĕpˈpā bôsˈkōvēch [key], 1711–87, Italian mathematician, astronomer, and physicist. He became a Jesuit and taught at Rome, Pavia, and Milan. ...ionosphere
(Encyclopedia)ionosphere īŏnˈəsfēr [key], series of concentric ionized layers forming part of the upper atmosphere of the earth from around 30 to 50 mi (50 to 80 km) to 250 to 370 mi (400 to 600 km) where it m...Gossen, Hermann Heinrich
(Encyclopedia)Gossen, Hermann Heinrich hĕrˈmän hīnˈrĭkh gôˈsən [key], 1810–58, German economist, little known in his lifetime. His work, Entwicklung der Gesetze des menschlichen Verkehrs und der daraus f...Grimaldi, Francesco Maria
(Encyclopedia)Grimaldi, Francesco Maria fränchāsˈkō märēˈä grēmälˈdē [key], 1618?–1663, Italian physicist and mathematician. A Jesuit and professor at Bologna, he studied in detail and named the dark ...atomism
(Encyclopedia)atomism, philosophic concept of the nature of the universe, holding that the universe is composed of invisible, indestructible material particles. The theory was first advanced in the 5th cent. b.c. b...plasma
(Encyclopedia)plasma, in physics, fully ionized gas of low density, containing approximately equal numbers of positive and negative ions (see electron and ion). It is electrically conductive and is affected by magn...bread
(Encyclopedia)bread, food made from grains that have been ground into flour or meal, moistened and kneaded into a dough, and then baked. Many types of bread are leavened, usually with yeast, which induces fermentat...integer
(Encyclopedia)integer: see number; number theory. ...triangle , in mathematics
(Encyclopedia)triangle, in mathematics, plane figure bounded by three straight lines, the sides, which intersect at three points called the vertices. Any one of the sides may be considered the base of the triangle....Lucretius
(Encyclopedia)Lucretius (Titus Lucretius Carus) lo͞okrēˈshəs [key], c.99 b.c.–c.55 b.c., Roman poet and philosopher. Little is known about his life. A chronicle of St. Jerome speaks of the loss of his reason ...Browse by Subject
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