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1. Radio object with continuous optical spectrum: Radio Objects with Continuous Optical Spectra, (abbr. ROCOS, also referred to as ROCOSes) is a group of about 80 astrophysical objects characterized by optical spectra anomalously devoid of emission or absorption features, which makes it impossible to determine their distances ... (Astronomy) [100%] 2023-11-23 [Astrophysics] [Astronomical radio sources]...

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1. Spectrum (arena): Lo Spectrum, precedentemente conosciuto come CoreStates Spectrum, First Union Spectrum e Wachovia Spectrum, è stato un palazzetto dello sport situato a Filadelfia, in Pennsylvania. Era l'arena in cui giocavano le partite casalinghe i Philadelphia Flyers della NHL e i Philadelphia ... (Arena) [100%] 2024-01-04
2. Spectrum (topology): In algebraic topology, a branch of mathematics, a spectrum is an object representing a generalized cohomology theory. Every such cohomology theory is representable, as follows from Brown's representability theorem. (Topology) [100%] 2023-10-30 [Homotopy theory]
3. Spectrum (Quannum album): Spectrum is a 1999 album by West Coast hip hop collective Quannum. It was the first release on the Quannum Projects label after its name was changed from SoleSides. (Quannum album) [100%] 2024-01-10 [1999 compilation albums] [Quannum Projects compilation albums]...
4. Spectrum (group): Spectrum (스펙트럼) was a South Korean boy band formed by WYNN Entertainment. Their lineup at the time of their disbandment consisted of six members: Minjae, Jaehan, Hwarang, Villain, and Eunjun. (Group) [100%] 2024-01-10 [K-pop music groups] [South Korean boy bands]...
5. Spectrum: The electromagnetic spectrum is the entire range of electromagnetic radiation extending in frequency from zero Hertz to 10 cycles per second (or Hertz). Longer wavelengths of electromagnetic radiation such as used in AM radio have lower frequencies (540 to 1600 ... [100%] 2023-03-07 [Telecommunications] [Physics]...
6. Spectrum (novel): Spectrum is a science fiction novel by Russian writer Sergei Lukyanenko, taking place in the near future. Contact with aliens allowed humanity to travel between planets through portals. (Novel) [100%] 2024-01-05 [Novels by Sergey Lukyanenko] [2002 science fiction novels]...
7. Spectrum (functional analysis): In mathematics, particularly in functional analysis, the spectrum of a bounded linear operator (or, more generally, an unbounded linear operator) is a generalisation of the set of eigenvalues of a matrix. Specifically, a complex number \displaystyle{ \lambda }[/math] is said ... (Functional analysis) [100%] 2023-10-20 [Spectral theory]
8. Spectrum (linear operator): A bounded, linear operator O that maps a Banach space into itself has a spectrum of values {λ} provided there are non-zero vectors xλ in the space such that O xλ = λ xλ. The {λ} are called characteristic values of O and {xλ} the eigenvectors of ... (Linear operator) [100%] 2023-06-28
9. Spectrum (physical sciences): In the physical sciences, the term spectrum was introduced first into optics by Isaac Newton in the 17th century, referring to the range of colors observed when white light was dispersed through a prism. Soon the term referred to a ... (Physical sciences) [100%] 2024-01-10 [Spectrum (physical sciences)]
10. Spectrum (Jega album): Spectrum is the first album by the electronic musician, Jega, released in 1998 on Planet Mu. The album peaked at #155 on the CMJ Radio Top 200 and #12 on the CMJ RPM Charts in the U.S. (Jega album) [100%] 2024-01-02 [1998 debut albums] [Jega (musician) albums]...
11. Spectrum: This disambiguation page lists articles associated with the same or a similar title. Electromagnetic spectrum: The range of electromagnetic waves covering all frequencies and wavelengths. e] * Spectrum (linear operator): A set of values {λ} characteristic of an operator O mapping a ... [100%] 2023-09-11
12. Spectrum: A spectrum (plural spectra or spectrums) is a condition that is not limited to a specific set of values but can vary infinitely within a continuum. The word saw its first scientific use within the field of optics to describe ... [100%] 2024-01-10 [Science] [Fundamental physics concepts]...
13. Spectrum (physical sciences): In the physical sciences, the term spectrum was introduced first into optics by Isaac Newton in the 17th century, referring to the range of colors observed when white light was dispersed through a prism. Soon the term referred to a ... (Physics) [100%] 2024-05-07 [Concepts in physics] [Light]...
14. Spectrum (альбом Билли Кобэма): Spectrum — дебютный сольный альбом барабанщика Билли Кобэма, выпущенный в 1973 году лейблом Atlantic. Альбом стал настоящим прорывом в джаз-фьюжн, который повсеместно признан одним из самых значительных и влиятельных творений жанра, наряду с альбомами Mahavishnu Orchestra. (Альбом Билли Кобэма) [100%] 2024-11-24
15. Spectrum (arena): The Spectrum (later known as CoreStates Spectrum, First Union Spectrum and Wachovia Spectrum) was an indoor arena in Philadelphia, Pennsylvania. The arena opened in September 1967 as part of what is now known as the South Philadelphia Sports Complex. (Arena) [100%] 2024-08-11 [1967 establishments in Pennsylvania] [2009 disestablishments in Pennsylvania]...
16. Spectrum (brand): Spectrum is the trade name of Charter Communications. The name is widely used by both market consumers and commercial businesses. (Brand) [100%] 2025-04-02 [Broadband] [Charter Communications]...
17. Spectrum (topology): In algebraic topology, a branch of mathematics, a spectrum is an object representing a generalized cohomology theory. Every such cohomology theory is representable, as follows from Brown's representability theorem. (Topology) [100%] 2025-05-25 [Homotopy theory] [Spectra (topology)]...
18. Neuromyelitis optica spectrum disorder: Neuromyelitis optica spectrum disorders (NMOSD) is an etiologically heterogeneous syndrome predominantly characterized by acute inflammation of the optic nerve (optic neuritis, ON) and the spinal cord (myelitis). Episodes of ON and myelitis can be simultaneous or successive. [90%] 2023-10-27 [Autoimmune diseases] [Demyelinating diseases of CNS]...
19. Neuromyelitis optica spectrum disorder: Neuromyelitis optica spectrum disorders (NMOSD) are a spectrum of autoimmune diseases characterized by acute inflammation of the optic nerve (optic neuritis, ON) and the spinal cord (myelitis). Episodes of ON and myelitis can be simultaneous or successive. (Medicine) [90%] 2025-04-28 [Autoimmune diseases] [Rare diseases]...
20. Spektrum (magazine): Spektrum was a Norwegian literary, art and cultural magazine, issued from 1946 to 1954. Its first editors were Carl Fredrik Engelstad and Hans Peter L'Orange, and from 1949 Ernst Sørensen, with Aasmund Brynildsen and Barthold A. (Magazine) [87%] 2024-01-06 [1946 establishments in Norway] [1954 disestablishments in Norway]...