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The spectrum in a rainbow. A spectrum (pl.: spectra or spectrums) [1] is a condition that is not limited to a specific set of values but can vary, without gaps, across a continuum. The word spectrum was first used scientifically in optics to describe the rainbow of colors in visible light after passing through a prism.
In Latin, spectrum means "image" or "apparition", including the meaning "spectre". Spectral evidence is testimony about what was done by spectres of persons not present physically, or hearsay evidence about what ghosts or apparitions of Satan said. It was used to convict a number of persons of witchcraft at Salem, Massachusetts in the late 17th ...
In mathematics, spectrum frequently denotes a set of numbers associated to an object: Spectrum of a matrix, its set of eigenvalues, in linear algebra . Spectrum (functional analysis), a generalization of the concept of matrix eigenvalues to operators
We’ve all heard of the term "spectrum," used to describe everything from colors to mental health, but what does it mean when applied to gender and sexuality? As the world has further explored ...
A political spectrum is a system to characterize and classify different ... Liberalism can mean different things in ... Text is available under the Creative ...
The visible spectrum is the band of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light (or simply light).
There are far too many text abbreviations to know, so we've gathered the most popular ones to make your ultimate guide! Skip to main content. Sign in. Mail. 24/7 Help. For premium support please ...
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