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light cone

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Also known as light cones, lightcone, light-cone

path taken by a flash of light through spacetime

Wikidata facts

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cone
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Commons category
Light cones
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WikiProject Mathematics
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via Wikidata · CC0

~9 min read

Encyclopedic overview

Light cone in 2D space plus a time dimension, more commonly referred to as ‘space time’

In special and general relativity, a light cone (or null cone) is the path that a flash of light, emanating from a single event — localized to a single point in space and a single moment in time — and traveling in all directions, would take through spacetime.

Excerpted from Wikipedia’s “light cone” article, available under the CC BY-SA 4.0 licence.