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Spectrum 스펙트럼

About

A spectrum (pl.: spectra or spectrums) is a set of related ideas, objects, or properties whose features overlap such that they blend to form 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 the optical spectrum, light wavelength is viewed as continuous, and spectral colors are seen to blend into one another smoothly when organized in order of their corresponding wavelengths. As scientific understanding of light advanced, the term came to apply to the entire electromagnetic spectrum, including radiation not visible to the human eye.

Description via Wikipedia (lead extract) · name cross-verified Wikidata + Wikipedia.

Verified facts

Spectrum (스펙트럼) — verified Korean book. Published 2018-09. By Kim Choyeop.

Details

• Original language: Korean
• Author: Dave Kirkby
• First published: 1989
• Definition: a set of related ideas, objects, or properties whose features overlap such that they blend to form a continuum
• Original Scientific Use: optics
• First Application: rainbow of colors in visible light after passing through a prism

Source reconciliation

• Open Library lists the Korean name as Spectrum Maths; KoreaAPI uses 스펙트럼 (chosen by source authority).
• Open Library lists the English name as Spectrum Maths; KoreaAPI uses Spectrum (chosen by source authority).

Independent sources disagreed here — shown, not hidden.

Members (1)

• Kim Choyeop

Q&A — what agents ask

Cross-checked by 3 source(s)

• Wikidata — structured open knowledge base · view ↗
• Wikipedia — encyclopedic article · view ↗
• Open — source

Verification history

Verified & tracked since 2026-08-17 · 4 verified snapshots.

Append-only, timestamped — the record of WHEN a fact changed, which a latecomer cannot backfill. Full feed: /changes.json · machine-readable: get_history("book:spectrum").

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