Columbia Encyclopedia

Search results

500 results found

nuclear structure

(Encyclopedia)nuclear structure: see nucleus. ...

nuclear waste

(Encyclopedia)nuclear waste: see radioactive waste. ...

Nuclear Regulatory Commission

(Encyclopedia)Nuclear Regulatory Commission (NRC), an independent U.S. government commission, created by the Energy Reorganization Act of 1974 and charged with licensing and regulating civilian use of nuclear energ...

nuclear magnetic resonance

(Encyclopedia)nuclear magnetic resonance: see magnetic resonance. ...

nuclear test-ban treaty

(Encyclopedia)nuclear test-ban treaty: see disarmament, nuclear. ...

test-ban treaty, nuclear

(Encyclopedia)test-ban treaty, nuclear: see disarmament, nuclear. ...

International Campaign to Abolish Nuclear Weapons

(Encyclopedia)International Campaign to Abolish Nuclear Weapons (ICAN), coalition of nongovernmental organizations that was formed in 2007 to advocate for the banning of nuclear weapons. It is based in Geneva, Swit...

European Organization for Nuclear Research

(Encyclopedia)European Organization for Nuclear Research: see CERN. ...

Three Mile Island

(Encyclopedia)Three Mile Island, site of a nuclear power plant 10 mi (16 km) south of Harrisburg, Pa. On Mar. 28, 1979, failure of the cooling system of the No. 2 nuclear reactor led to overheating and partial melt...

chain reaction

(Encyclopedia)CE5 Chain reaction: A neutron (n) strikes the uranium nucleus (U-235), causing it to split into fission products A and B and release two neutrons. These neutrons can in turn cause further fissions....