Spectrum (disambiguation)

A spectrum is a condition or value that is not limited to a specific set of values but can vary infinitely within a continuum.

Spectrum may also refer to:

Science and technology

Physics

Continuous spectrum, of any physical quantity that can change smoothly
Discrete spectrum
Electromagnetic spectrum
- Visible spectrum or optical spectrum, a subset of the electromagnetic spectrum
- Emission spectrum, observed in light
- Absorption spectrum, observed in light
- Radio spectrum, radio frequency subset of the electromagnetic spectrum
- Stellar spectrum, the combination of continuum, absorption, and emission lines produced by a star
Energy spectrum, of a collection of particles (particle physics)
Frequency spectrum, of a signal
Power spectrum, of a signal

Medicine

Spectrum disorder, a group of mental disorders of similar appearance or thought to share an underlying mechanism
- Autism spectrum, encompassing autism, Asperger's, etc.
Antimicrobial spectrum, the range of microorganisms an antibiotic can kill or inhibit

Mathematics

Pseudospectrum
Spectrum of a matrix, in linear algebra
Spectrum (functional analysis), a generalization of the concept of matrix eigenvalues to operators
Spectrum (topology)
Spectrum of a C*-algebra
Spectrum of a graph, studied in spectral graph theory
Spectrum of a polygon, the set of numbers of possible equidissections
Spectrum of a ring, in commutative algebra
Spectrum of a sentence, in mathematical logic
Spectrum of a theory, in mathematical logic
Stone space, of boolean algebra

Arts and entertainment

Spectrum, a brand name used by Charter Communications for their telecommunication services, including:
- Charter Spectrum, an internet, television and telephone provider owned by Charter Communications, formerly Time Warner Cable
- Spectrum News, a group of six cable news channels owned by Charter Communications, formerly Time Warner Cable News
- Spectrum Sports, a group of nine regional sports networks in the US, formerly branded Time Warner Cable Sports Channel or Time Warner Cable SportsNet

Publications

IEEE Spectrum, a magazine by the Institute of Electrical and Electronics Engineers
Spectrum (magazine), an independent Seventh-day Adventist magazine
Spectrum (newspaper), a defunct Toledo, Ohio weekly newspaper
The Spectrum (Utah), also known as The Spectrum & Daily News, a Gannett newspaper in St. George, Utah
Spectrum (novel), a 2002 novel by Russian author Sergey Lukyanenko
Spectrum, a liftout in The Sydney Morning Herald

Student newspapers

The Spectrum (USLS), the student newspaper of the University of St. La Salle in the Philippines
The Spectrum (NDSU), the student newspaper of the North Dakota State University, US
The Spectrum (University at Buffalo), the student newspaper of the University at Buffalo, US

Television

Spectrum (TV channel), a defunct Chicago-area pay television broadcaster founded by United Cable
Spectrum (TV series), a 1958 Canadian television series
Spectrum (radio program), a daily broadcast series on CBS Radio, c. 1970–1992

Music

Spectrum (UK band), lead by Peter Kember
Spectrum (band), an Australian group of the 1970s led by Mike Rudd
Spectrum (group), a South Korean boy group formed in 2018
Spectrum, a bluegrass band that included Béla Fleck and Jimmy Gaudreau
Spectrum (The Carpenters), 1960s jazz band led by Richard and Karen Carpenter
Spectrum (Billy Cobham album), debut album of fusion drummer Billy Cobham
Spectrum (Cedar Walton album), the second album by jazz pianist Cedar Walton
Spectrum (Jega album), debut album of electronic musician Jega
Spectrum (Steve Howe album), 2005
Spectrum (Illinois Jacquet album), 1965
Spectrum (Westlife album), 2019
"Spectrum (Say My Name)", a 2012 song by British indie rock band Florence and the Machine
"Spectrum" (Zedd song), a 2012 song by German electronic dance music producer Zedd; also covered by SM The Performance
The Spectrum (Sirius XM), a music channel on Sirius Satellite Radio
The Spectrum (1964–1970), a London-based pop group coincidentally providing the closing theme for the spectrum-themed TV show Captain Scarlet and the Mysterons
The Spectrum (album), of 2017 by Daley
Spectrum (Hiromi album), 2019

Other arts and entertainment

Spectrum, a news website founded by the Simons Foundation Autism Research Initiative
Monica Rambeau, a Marvel Comics character who uses the name Spectrum
Spectrum, the worldwide security organisation in the 1960s TV series Captain Scarlet and the Mysterons
Gaylactic Spectrum Awards or Spectrums, a literary award
Spectrum Award, in fantasy, science fiction, and horror artwork

Buildings and structures

Spectrum (Montreal), a defunct concert venue in Canada
Spectrum London, an art gallery in England
Guildford Spectrum, a leisure complex in Guildford, England
Smith Spectrum, a sports arena in Logan, Utah, US
Spectrum (arena), a former sports arena in Philadelphia, Pennsylvania, US

Organizations

Spectrum Aircraft, a Canadian ultralight aircraft manufacturer
Spectrum Aeronautical, a US-based manufacturer of very light jets
Spectrum Animation, a defunct Japanese animation studio
Het Spectrum, a Dutch publishing company
Spectrum Pharmaceuticals, an American biopharmaceutical company
Spectrum (Amsterdam) (formerly Librije's Zusje), Michelin-starred restaurant in Amsterdam, The Netherlands
Charter Spectrum a company which offers Spectrum Internet

Products

Spectrum (racing car), a series of Australian open wheel racing cars manufactured by Borland Racing Developments
Chevy Spectrum, a North American car also sold as the Geo Spectrum
ZX Spectrum, an early British home computer by Sinclair
Spectrum, a brand of printer paper owned by Georgia-Pacific

Other uses

Economic spectrum, disparities between social classes
Political spectrum, of opinion
Spectrum Range, a mountain range in British Columbia, Canada
Spectrum (horse), a thoroughbred racehorse
SPECTRUM Standard, a Museum Collections Management Standard developed by the Collections Trust

gollark: I'm not sure. Maybe in schools, definitely in the military.

gollark: It's not all you have. In many cases, it is possible to actually check things.

gollark: It's not like social pressure is a great guide to truth in general.

gollark: You could probably even make it work in a slightly less utterly accursed way using the privacy-preserving contact tracing mechanisms people came up with.

gollark: The correct libertarian solution is to implement a vast surveillance state capable of accurately telling who you were infected by if this happens, so that you can invoice/sue them.