Columbia Encyclopedia

Search results

30 results found

Fahrenheit temperature scale

(Encyclopedia)Fahrenheit temperature scale fârˈənhītˌ [key], temperature scale in which the temperature difference between two reference temperatures, the melting and boiling points of water, is divided into 1...

heat capacity

(Encyclopedia)heat capacity or thermal capacity, ratio of the change in heat energy of a unit mass of a substance to the change in temperature of the substance; like its melting point or boiling point, the heat cap...

angstrom

(Encyclopedia)angstrom ăngˈstrəm [key], abbr. Å, unit of length equal to 10−10 meter (0.0000000001 meter); it is used to measure the wavelengths of visible light and of other forms of electromagnetic radiatio...

Rasmussen, Lars Løkke

(Encyclopedia)Rasmussen, Lars Løkke lärs lökˈə räsˈmo͝osən [key], 1964–, Danish political leader, grad Univ. of Copenhagen (1992). A member of the center-right Liberal party, he was county mayor of Frede...

Burma Road

(Encyclopedia)Burma Road, in China and Myanmar, extending from the railhead of Lashio, Myanmar, to Kunming, Yunnan prov., China. About 700 mi (1,130 km) long and constructed through rough mountain country, it was a...

specific heat

(Encyclopedia)specific heat, ratio of the heat capacity of a substance to the heat capacity of a reference substance, usually water. Heat capacity is the amount of heat needed to change the temperature of a unit ma...

dahlia

(Encyclopedia)dahlia dälˈyə, dălˈ– [key] [for Anders Dahl, 1751–89, Swedish botanist and pupil of Linnaeus], any plant of the genus Dahlia of the family Asteraceae (aster family), tuberous-rooted perennial...

Anderson, Lennart

(Encyclopedia)Anderson, Lennart (Anders Lennart Anderson), 1928–2015, American artist, b. Detroit. He studied at the Art Institute of Chicago (B.F.A., 1950) and Cranbrook Academy of Art (M.F.A., 1952) and at New ...

Rankine temperature scale

(Encyclopedia)Rankine temperature scale, temperature scale having an absolute zero, below which temperatures do not exist, and using a degree of the same size as that used by the Fahrenheit temperature scale. Absol...

temperature

(Encyclopedia)CE5 Temperature scales temperature, measure of the relative warmth or coolness of an object. Temperature is measured by means of a thermometer or other instrument having a scale calibrated in unit...

Browse by Subject