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sighting line

sighting line A sighting line is the straight line joining two luminous points that appear to the observer to lie in exactly the same direction.

A sighting line is the straight line joining two luminous points that appear to the observer to lie in exactly the same direction. In this historical optics usage, the main sighting line is treated as practically the same as the line of sight.

Sources

Drafting source: Baldwin, Dictionary of Philosophy and Psychology, volume II. 1902 original US edition; OCR SHA-256 b86b5dbbaa0a0b3ecf6c8b0a089a7ca5409b9bac4e6481cba91c99bba16f31bd. “Baldwin, Dictionary of Philosophy and Psychology, volume II” (philopsych02balduoft:chars-2982000-2994000).
public-domain-US · Definition uses new wording; original source retains its stated licence. · Source snapshot SHA-256: b86b5dbbaa0a0b3ecf6c8b0a089a7ca5409b9bac4e6481cba91c99bba16f31bd

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PsychTerms (psychterms.org), CC BY 4.0, version 1. “sighting line.” Development preview.

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sighting line

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Sources

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