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blockhouse

(Encyclopedia)blockhouse, small fortification, usually temporary, serving as a post for a small garrison. Blockhouses seem to have come into use in the 15th cent. to prevent access to a strategically important obje...

torsion balance

(Encyclopedia)torsion balance, instrument used to measure small forces. It is based on the principle that a wire or thread resists twisting with a force that is proportional to the stress. The torsion balance consi...

Trinity Bay

(Encyclopedia)Trinity Bay, inlet of the Atlantic Ocean, 80 mi (129 km) long, SE Newfoundland, N.L., Canada, between the Avalon Peninsula and the mainland. With its small waterfront settlements, it preserves somethi...

silversides

(Encyclopedia)silversides, common name for small shore fishes, belonging to the family Antherinidae, abundant in the warmer waters of the Atlantic and Pacific, and named for the silvery stripe on either side of the...

Drake, Sir Francis

(Encyclopedia)Drake, Sir Francis, 1540?–1596, English navigator and admiral, first Englishman to circumnavigate the world (1577–80). In 1585, Drake commanded a fleet that sacked Vigo in Spain and burned São ...

Shetland sheepdog

(Encyclopedia)Shetland sheepdog, breed of small, agile working dog perfected in the Shetland Islands in the 19th cent. It stands from 13 to 16 in. (33.0–40.6 cm) high at the shoulder and weighs about 15 lb (7 kg)...

Arklow

(Encyclopedia)Arklow ärˈklō [key], town, Co. Wicklow, E Republic of Ireland, on St. George's Channel at the mouth of the Avoca River. The town has become a popular resort and has a s...

peddler

(Encyclopedia)peddler or hawker, itinerant vendor of small goods. In rural America peddlers carried their packs or drove a horse and cart from door to door. While the importance of peddlers to the small American co...

Pentland Firth

(Encyclopedia)Pentland Firth pĕntˈlənd fûrth [key], channel, 6 to 8 mi (9.7–12.9 km) wide and c.14 mi (23 km) long, N Scotland. Connecting the North Sea with the Atlantic Ocean, it separates the Scottish main...

Aves Island

(Encyclopedia)Aves Island äˈvĕs [key] or Bird Island, Span. Isla de Aves, small, low-lying sand and coral island, a dependency of Venezuela, in the E Caribbean Sea 380 mi (610 km) N of the Venezuelan mainland. V...