A sextant is a doubly reflecting navigation instrument that measures the angular distance between two visible objects. The principle of the instrument was first implemented around 1731 by John Hadley and Thomas Godfrey. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
Facts
YearSourced to the subject's own accountApproximate, source states around 1731. Connections
Associated With
Source Astrolabe (Wikipedia)
In Field
Source Sextant (Wikipedia)
Held Differently
John Hadley, Engineers Why this is disputed. Independently claimed the same octant/sextant principle circa 1731 alongside Thomas Godfrey (co-claimant not wired to a separate entity this pass; recorded as a gap).
Source Sextant (Wikipedia)
Sources
1. Sextant (Wikipedia)
WikipediaLead section (entity-description)
A sextant is a doubly reflecting navigation instrument that measures the angular distance between two visible objects.
Lead section (Hadley and Godfrey)
The principle of the instrument was first implemented around 1731 by John Hadley and Thomas Godfrey
Invented By: John Hadley, History section (inventor attribution)
The principle of the instrument was first implemented around 1731 by John Hadley and Thomas Godfrey.
In Field: Marine Engineering, Introduction
A sextant is a doubly reflecting navigation instrument that measures the angular distance between two visible objects.
View the Source Astrolabe (Wikipedia)
WikipediaAssociated With: Astrolabe, Introduction sectionQuote, Associated With: Astrolabe, Introduction section
The astrolabe, which is a precursor to the sextant, is effective for determining latitude on land or calm seas.
Reader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.
Sign in to dispute this or suggest a correction.