แสง

Also known as lights, near-visible light, near-visible spectrum, near-visible electromagnetic radiation, light wave

thumb|upright=1.3|A triangular dispersive prism|prism dispersing a beam of white light. The longer wavelengths (red) and the shorter wavelengths (green-blue) are separated.

OverviewAI-generated

Light is an electromagnetic wave and optical radiation that is the opposite of darkness. It has a speed of 299792458 and is composed of photons. The subject possesses a spectrum and is studied by optics. It is distinct from the visible spectrum.

Light has uses in the visual system, photosynthesis, art, and video art. It is referenced by 2,312 other encyclopedia articles. The topic appears on the Wikipedia:List of articles all languages should have and Wikipedia:Vital articles/Level/4. It is described by sources including the Brockhaus and Efron Encyclopedic Dictionary, Encyclopædia Britannica 11th edition, Oxford English Dictionary, and Monash University.

Synthesized by Vinony from 17 facts across 3 sources: Wikidata, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.