Columbia Encyclopedia
Search results
500 results found
pulley
(Encyclopedia) CE5 Pulleys: The mechanical advantage (MA) of a system of pulleys is equal to the number of supporting strands: in A MA=1 and in B MA=2. pulley, simple machine consisting of a wheel over which a r...eccentric
(Encyclopedia)eccentric, in mechanics, device for changing rotary to back-and-forth motion. A disk is mounted off center on a shaft. One flat, open, circular end of a rod fits around the edge of the disk; the other...block printing
(Encyclopedia)block printing: see textile printing under textiles. ...kettle
(Encyclopedia)kettle, oval depression found in glacial moraines, which are landforms made up of rock debris. When a glacier melts and draws away from an area, a block of ice may break off and be covered by earth an...Wall Street
(Encyclopedia)Wall Street, narrow street in the lower part of Manhattan island, New York City, extending E from Broadway to the East River. It is the center of one of the greatest financial districts in the world, ...Kuril Islands
(Encyclopedia)Kuril Islands kyo͝orˈēlz, kyo͝orēlzˈ [key], Jap. Chishima-Retto, Rus. Kurilskiye Ostrova, island chain, c.6,020 sq mi (15,590 sq km), Sakhalin region, E Russia. They stretch c.775 mi (1,250 km) ...block and tackle
(Encyclopedia)block and tackle: see pulley.linoleum block printing
(Encyclopedia)linoleum block printing or linocut, 20th-century development in the art of relief cuts. The linoleum block consists of a thin layer of linoleum mounted on wood; in this the design to be printed is cut...Rhode Island, state, United States
(Encyclopedia) CE5 Rhode Island, smallest state in the United States, located in New England; bounded by Massachusetts (N and E), the Atlantic Ocean (S), and Connecticut (W). Until well into the 20th cent. ...Block, Herbert Lawrence
(Encyclopedia)Block, Herbert Lawrence, 1909–2001, American editorial cartoonist known as Herblock, b. Chicago. A superb stylist and generally a political liberal, Herblock began drawing cartoons (1929–33) for t...Browse by Subject
- Earth and the Environment +-
- History +-
- Literature and the Arts +-
- Medicine +-
- People +-
- Philosophy and Religion +-
-
Places
+-
- Africa
- Asia
- Australia and Oceania
- Britain, Ireland, France, and the Low Countries
- Commonwealth of Independent States and the Baltic Nations
- Germany, Scandinavia, and Central Europe
- Latin America and the Caribbean
- Oceans, Continents, and Polar Regions
- Spain, Portugal, Italy, Greece, and the Balkans
- United States, Canada, and Greenland
- Plants and Animals +-
- Science and Technology +-
- Social Sciences and the Law +-
- Sports and Everyday Life +-
