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light cone
From Wiktionary, the free dictionary
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See also: lightcone
English
Alternative forms
Noun
light cone (plural light cones)
- (relativity) In special relativity, the pattern describing the temporal evolution of a flash of light in Minkowski spacetime. This is modeled in 3-space using the two horizontal axes as spatial dimensions, while the vertical axis is time.
- 1998, Hermann Bondi, Miranda Weston-Smith, editors, The Universe Unfolding, Clarendon Press, page 384:
- This gives the future light cone of the event. Similarly, you can define the past light cone—as the history of a spherical shell of light converging in on the event. All these spatial spheres, past and future, represent cross-sections through the space–time light cone, […]
- (by extension, figurative) A (realized or imagined) data visualization of possible sets of future outcomes that is analogous to such a cone.
- Used other than figuratively or idiomatically: see light, cone.
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