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Costa Rica

(Encyclopedia)CE5 Costa Rica kŏsˈtə rēˈkə [key], officially Republic of Costa Rica, republic (2020 est. pop. ...

atom

(Encyclopedia)CE5 Bohr-Rutherford atom CE5 Probability distribution of the electron in the hydrogen atom: A. Ground state B. Highly excited state atom [Gr.,=uncuttable (indivisible)], basic unit of matte...

light

(Encyclopedia)light, visible electromagnetic radiation. Of the entire electromagnetic spectrum, the human eye is sensitive to only a tiny part, the part that is called light. The wavelengths of visible light range ...

Fiji

(Encyclopedia)Fiji vēˈtē [key], officially Republic of Fiji, republic (2015 est. pop. 892,000), c.7,000 sq mi (18,130 sq km), South Pacific. Suva is the capital. Polynesians presumably arrived in the islands ...

chemistry

(Encyclopedia)chemistry, branch of science concerned with the properties, composition, and structure of substances and the changes they undergo when they combine or react under specified conditions. Organic chemi...

Nobel Prizes (table)

(Encyclopedia)Nobel Prizes

New Zealand

(Encyclopedia)CE5 New Zealand zēˈlənd [key], island country (2015 est. pop. 4,615,000), 104,454 sq mi (270,534 sq km), in the S Pacific Ocean, over 1,000 mi (1,600 km) SE of Australia. The capital is Wellingt...

Norway

(Encyclopedia)CE5 Norway, Nor. Norge, officially Kingdom of Norway, constitutional monarchy (2015 est. pop. 5,200,000), 125,181 sq mi (324,219 sq km), N Europe, occupying the western part of the Scandinavian pen...

vitamin

(Encyclopedia)vitamin, group of organic substances that are required in the diet of humans and animals for normal growth, maintenance of life, and normal reproduction. Vitamins act as catalysts; very often either t...

physics

(Encyclopedia)physics, branch of science traditionally defined as the study of matter, energy, and the relation between them; it was called natural philosophy until the late 19th cent. and is still known by this na...