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What (who) is useful signature - definition
WIKIMEDIA DISAMBIGUATION PAGE
Useful
Metric signature
MATHEMATICAL CONCEPT
Signature change; Signature (physics); Euclidean signature; +---; -+++; Lorentz signature; Mostly Plus; Mostly Minus; Signature of the metric
In mathematics, the signature of a metric tensor g (or equivalently, a real quadratic form thought of as a real symmetric bilinear form on a finite-dimensional vector space) is the number (counted with multiplicity) of positive, negative and zero eigenvalues of the real symmetric matrix of the metric tensor with respect to a basis. In relativistic physics, the v represents the time or virtual dimension, and the p for the space and physical dimension.
Useful idiot
DEROGATORY TERM FOR A PERSON PERCEIVED TO PROPAGANDIZE FOR A CAUSE WITHOUT FULLY COMPREHENDING THE CAUSE'S GOALS
Useful Idiots; Useful Idiot; Useful idiots; Poleznye idioty; Useful idiots of the West; Useful innocents; Useful innocent; Idiotarian; Useful fool; Useful fools; Korisne Budale; Idiots utiles; Idiot utile; Polezniye duraki; Polezni durak; Unwitting agent
In political jargon, a useful idiot is a term for a person perceived as propagandizing for a cause -- particularly a bad cause originating from a devious, ruthless source -- without fully comprehending the cause's goals, and who is cynically used by the cause's leaders. The term was originally used during the Cold War to describe non-communists regarded as susceptible to communist propaganda and manipulation.
time signature
![String Quartet No. 2 in F major]], showing a multiple time signature](https://commons.wikimedia.org/wiki/Special:FilePath/Tchaikovsky String Quartet in F excerpt.png?width=200 "String Quartet No. 2 in F major]], showing a multiple time signature")
SPECIFICATION OF BEATS IN A MUSICAL BAR OR MEASURE
Common time; 4/4 time; Meter signature; Time signatures; Time-signature; 4/4 beat; Time (music); 6/8 Time; Irregular time signatures; Irregular time signature; Odd time signature; Odd time signatures; Unusual time signature; Unusual time signatures; Waltz time; Time Signature; Additive meter; Eight to the bar; Eight to the Bar; 6/8 time; Complex time signature; Complex meter; Commontime; 13/8; Three-quarter time; 𝄴; Common-time; Usual time signature; Mixed meter; Asymmetric time signatures; Irrational time signature; Irrational meter; Non-dyadic time signature; Non-dyadic meter; Odd meter; 4/4 music; 5/4 music; 7/4 music; 11/4 music
(time signatures)
The time signature of a piece of music consists of two numbers written at the beginning that show how many beats there are in each bar.
N-COUNT
Wikipedia
Utility (disambiguation)
Utility is a measure of the happiness or satisfaction gained from a good or service in economics and game theory.
Utility or Utilities may also refer to:
