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buffer

(Encyclopedia)buffer, solution that can keep its relative acidity or alkalinity constant, i.e., keep its pH constant, despite the addition of strong acids or strong bases. Buffer solutions are frequently solutions ...

Wonsan

(Encyclopedia)Wonsan wŭnˈsän [key], Jap. Gensan, city (1993 pop. 300,148), capital of Kangwon prov., SE North Korea, on the Sea of Japan (or East Sea). It is a major port and naval base, with a natural harbor pr...

Wheaton, William Rufus

(Encyclopedia)Wheaton, William Rufus, 1814–88, American baseball pioneer, b. New York City. He practiced law in New York during the 1830s and 40s, and was a founding member and vice president of the Knickerbocker...

torque

(Encyclopedia)torque, in physics, that which tends to change the rate of rotation of a body; also called the moment of force. The torque produced by rotating parts of an electric motor or internal-combustion engine...

weight

(Encyclopedia)weight, measure of the force of gravity on a body (see gravitation). Since the weights of different bodies at the same location are proportional to their masses, weight is often used as a measure of m...

Langdon, Harry

(Encyclopedia)Langdon, Harry, 1884–1944, American silent film comedian and director, b. Council Bluffs, Iowa. He repeatedly ran away from home to join traveling shows and circuses as a youngster, and later develo...

Chauncy, Charles

(Encyclopedia)Chauncy, Charles chônˈsē, chänˈ– [key], 1705–87, American Congregational clergyman, b. Boston. He was ordained as a minister of the First Church, Boston, in 1727 and remained in that pulpit f...

fuel injection

(Encyclopedia)fuel injection, system in an internal-combustion engine that delivers fuel or a fuel-air mixture to the cylinders by means of pressure from a pump. It was originally used in diesel engines because of ...

chart

(Encyclopedia)chart, term referring to maps prepared for marine navigation and for air navigation. All charts show, in some convenient scale, geographic features useful to the navigator, as well as indications of d...

Pacific Remote Islands Marine National Monument

(Encyclopedia)Pacific Remote Islands Marine National Monument, c.490,000 sq mi (1,260,000 sq km), central Pacific Ocean; est. 2009. The monument comprises the waters and reefs surrounding seven islands and atolls, ...