Columbia Encyclopedia

Search results

346 results found

Antarctica

(Encyclopedia)CE5 Antarctica ăntärkˈtĭkə, –ärˈtĭkə [key], the fifth largest continent, c.5,500,000 sq mi (14,245,000 sq km), asymmetrically centered on the South Pole and almost entirely within the An...

Michigan

(Encyclopedia)CE5 Michigan mĭshˈĭgən [key], upper midwestern state of the United States. It consists of two peninsulas thrusting into the Great Lakes and has borders with Ohio and Indiana (S), Wisconsin (W),...

birth control

(Encyclopedia)birth control, practice of contraception for the purpose of limiting reproduction. Although contraceptive techniques had been known in ancient Egypt, Greece, and Rome, the modern movement for birth ...

radioactivity

(Encyclopedia)CE5 Effects of a magnetic field on the products of radioactivity CE5 Disintegration series: Radioactive decay of radium-226 into lead-206 radioactivity, spontaneous disintegration or decay of t...

Nobel Prizes (table)

(Encyclopedia)Nobel Prizes

comic strip

(Encyclopedia)comic strip, combination of cartoon with a story line, laid out in a series of pictorial panels across a page and concerning a continuous character or set of characters, whose thoughts and dialogues a...

electricity

(Encyclopedia)CE5 Electrical and radio symbols electricity, class of phenomena arising from the existence of charge. The basic unit of charge is that on the proton or electron—the proton's charge is designate...

history

(Encyclopedia)history, in its broadest sense, is the story of humanity's past. It also refers to the recording of that past. The diverse sources of history include books, newspapers, printed documents, personal pap...

costume

(Encyclopedia)costume, distinctive forms of clothing, including official or ceremonial attire such as ecclesiastical vestments, coronation robes, academic gowns, armor, and theatrical dress. The use of ornament pre...

Guinea, country, Africa

(Encyclopedia)CE5 Guinea gĭnˈē [key], officially Republic of Guinea, republic (2015 est. pop. 12,092,000), 94,925 sq mi (245,856 sq km), W Africa. It is bounded on the north by Guinea-Bissau, Senegal, and Mal...