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aircraft carrier

(Encyclopedia)aircraft carrier, ship designed to carry aircraft and to permit takeoff and landing of planes. The carrier's distinctive features are a upper deck (flight deck) that is flat and sometimes sloped to fu...

Text of the Constitution of the United States

(Encyclopedia)Text1 of the Constitution of the United States Preamble Article I Article II Article III Article IV Article V Article VI Article VII Amendment I Amendment II Am...

aerosol dispenser

(Encyclopedia)aerosol dispenser, device designed to produce a fine spray of liquid or solid particles that can be suspended in a gas such as the atmosphere. The dispenser commonly consists of a container that holds...

electron-volt

(Encyclopedia)electron-volt, abbr. eV, unit of energy used in atomic and nuclear physics; 1 electron-volt is the energy transferred in moving a unit charge, positive or negative and equal to that charge on the elec...

Ting, Samuel Chao Chung

(Encyclopedia)Ting, Samuel Chao Chung, 1936–, American physicist, b. Ann Arbor, Mich., Ph.D. Univ. of Michigan 1962. Ting was a professor at Columbia from 1965 to 1969, when he joined the faculty at the Massachus...

Schwinger, Julian Seymour

(Encyclopedia)Schwinger, Julian Seymour, 1918–94, American physicist, b. New York City, Ph.D. Columbia, 1939. He was a professor at the Univ. of California, Berkeley (1939–47) and worked under J. Robert Oppenhe...

colloid

(Encyclopedia)colloid kŏlˈoid [key] [Gr.,=gluelike], a mixture in which one substance is divided into minute particles (called colloidal particles) and dispersed throughout a second substance. The mixture is also...

scintillation counter

(Encyclopedia)scintillation counter, device for detecting and measuring radiation by means of tiny visible flashes produced by the radiation when it strikes a sensitive substance known as a phosphor (see phosphores...

Prefixes for Basic Metric Units (table)

(Encyclopedia)Prefixes for Basic Metric Units Multiples Fractions ...

van der Meer, Simon

(Encyclopedia)van der Meer, Simon, 1925–2011, Dutch physical engineer. He spent nearly his entire career at CERN, where he did his most important work with Carlo Rubbia. They discovered the W and Z particles, whi...