Columbia Encyclopedia

Search results

500 results found

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...

inorganic chemistry

(Encyclopedia)inorganic chemistry, the study of all the elements and their compounds with the exception of carbon and its compounds, which fall under the category of organic chemistry. Inorganic chemistry investiga...

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...

Wheeler, John Archibald

(Encyclopedia)Wheeler, John Archibald, 1911–2008, American physicist and educator, b. Jacksonville, Fla. Educated at Johns Hopkins (Ph.D., 1933), he joined the faculty at Princeton in 1938, and after 1976 was dir...

nuclear waste

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

nuclear winter

(Encyclopedia)nuclear winter, theory holding that the smoke and dust produced by a large nuclear war would result in a prolonged period of cold on the earth. The earliest version of the theory, which was put forwar...

Dyson, Freeman John

(Encyclopedia)Dyson, Freeman John dīˈsən [key], 1923–2020, British-American theoretical physicist and mathematician, studied Trinity College, Cambridge (B.A., 1945) and Cornell. He did bomber operations resear...
 

Browse by Subject