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Lewis, island, Scotland

(Encyclopedia)Lewis, Scotland: see Lewis and Harris. ...

Ezel, island, Estonia

(Encyclopedia)Ezel: see Saaremaa, Estonia.

Hydra, island, Greece

(Encyclopedia)Hydra, Greece: see Ídhra.

Ithaca, island, Greece

(Encyclopedia)Ithaca, Greece: see Itháki.

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...

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) ...

New Providence, island, Bahamas

(Encyclopedia)New Providence: see Bahamas.