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conscience

(Encyclopedia) conscience, sense of moral awareness or of right and wrong. The concept has been variously explained by moralists and philosophers. In the history of ethics, the conscience has been…

ammonium group

(Encyclopedia) ammonium group, in chemistry, a positively charged nitrogen atom joined by single bonds to four other atoms or groups. The simplest ammonium group, NH4+, is formed by protonation of…

Anderssen, Adolf

(Encyclopedia) Anderssen, Adolf (Karl Ernst Adolf Anderssen), 1818–79, German chess player, b. Breslau (now Wrocław, Poland). He graduated (1847) from Breslau Univ. and later was a mathematics…

heat of combustion

(Encyclopedia) heat of combustion, heat released during combustion. In particular, it is the amount of heat released when a given amount (usually 1 mole) of a combustible pure substance is burned to…

deduction

(Encyclopedia) deduction, in logic, form of inference such that the conclusion must be true if the premises are true. For example, if we know that all men have two legs and that John is a man, it is…

diminishing returns, law of

(Encyclopedia) diminishing returns, law of, in economics, law stating that if one factor of production is increased while the others remain constant, the overall returns will relatively decrease…

alloy

(Encyclopedia) alloyalloyălˈoi, əloiˈ [key] [O. Fr.,=combine], substance with metallic properties that consists of a metal fused with one or more metals or nonmetals. Alloys may be a homogeneous…

intoxication

(Encyclopedia) intoxication, condition of body tissue affected by a poisonous substance. Poisonous materials, or toxins, are to be found in heavy metals such as lead and mercury, in drugs, in…

distortion

(Encyclopedia) distortion, in electronics, undesired change in an electric signal waveform as it passes from the input to the output of some system or device. In an audio system, distortion results…

Fénelon, François de Salignac de la Mothe

(Encyclopedia) Fénelon, François de Salignac de la MotheFénelon, François de Salignac de la MothefräNswäˈ də sälēnyäkˈ də lä môt fānəlôNˈ [key], 1651–1715, French theologian and writer, a leader of…