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precision. Also, unlike the backstaff, the sextant allows direct observations of stars. This permits the use of the sextant at night when a backstaff is difficult...22 KB (3,157 words) - 10:00, 28 June 2024
from an early navigational instrument, the astrolabe, a precursor to the sextant. Louis-Isidore Duperrey commanded Coquille on its circumnavigation of...11 KB (1,004 words) - 05:45, 12 May 2024- of its type in the 15th century. Housed in the Ulugh Beg Observatory, the sextant had a finely constructed arc with a staircase on either side to provide...6 KB (873 words) - 17:01, 14 March 2024
- Reflecting instrument (section The sextant)the second became the standard instrument from which the sextant derived and, along with the sextant, displaced all prior navigation instruments used for...25 KB (3,441 words) - 20:20, 17 September 2024
soft bricks of the area. Al-Kashi compares this to Maragha, saying that the sextant is positioned higher there but also notes the flat roof present in Samarkand...21 KB (2,942 words) - 16:59, 9 August 2024
body is measured with a sextant and the time noted. The Sextant reading is known as the 'Sextant Altitude'. This is corrected by use of tables to a 'True...9 KB (1,388 words) - 06:02, 17 November 2023
British mathematical instrument maker who was notable for inventing the sextant.[citation needed] He came to London in 1740 where he worked for Jonathan...4 KB (327 words) - 00:17, 22 May 2024
distance method, suggested a larger instrument and the sextant was developed. From that time onward, the sextant was the instrument that experienced significant...24 KB (3,035 words) - 05:39, 6 May 2024- the octant and early sextant; the sextant eventually displaced the others, and is still used to this day. The sextant was mentioned by Isaac Newton (1643–1727)...3 KB (353 words) - 06:52, 17 December 2023
training during the late 1930s, both the methods used and the design of the sextant were adapted to better suit the aviation environment, while many aircraft...12 KB (1,325 words) - 17:35, 6 April 2024
Discovery for all these purposes. The astrolabe, which is a precursor to the sextant, is effective for determining latitude on land or calm seas. Although...47 KB (5,224 words) - 15:43, 22 September 2024
when his father had taught him the Zodiac, the planets and how to use the sextant. He worked at the observatory in Bossekop from 1882 to 1884, and as an...4 KB (356 words) - 17:44, 12 January 2023- John Hadley, independently invented the quadrant (the forerunner of the sextant), in 1730. "Godfrey Upland". Geographic Names Information System. United...1 KB (187 words) - 02:15, 5 February 2024
celestial body and the sensible horizon. The sextant, an optical instrument, is used to perform this function. The sextant consists of two primary assemblies...62 KB (7,333 words) - 07:47, 27 May 2024
Naval Expressions – Uniform Edition". USNHistory.NavyLive.DoDLive.mil. The Sextant, Naval History and Heritage Command. 3 August 2016. Archived from the...8 KB (730 words) - 09:57, 31 August 2024- communications. TALC+ includes an Iridium radio-modem, an antenna installed in the sextant port, a strong encryption device, a classified laptop computer, a handset...2 KB (240 words) - 20:49, 11 May 2024
- Castle Toward. After his death his widow presented the Royal Society with the sextant that had belonged to Brunel. b., C. V. (1933). "Henry Reginald Arnulph...4 KB (495 words) - 12:03, 7 July 2024
- The Sextant Formation is a geologic formation in Ontario. It preserves fossils dating back to the Devonian period. Earth sciences portal Ontario portal...1 KB (57 words) - 17:59, 13 February 2024
- that his Grandpa loves him. He and Hook then go off on their quest for the sextant. Emma, Mary Margaret, and Regina set a trap and capture Devin. Emma tells...12 KB (1,827 words) - 14:45, 5 April 2024
astronomical navigation: loxodromia and orthodromia. Height correction of the sextant . Astronomical position with calculator, template and blank mercantile...7 KB (900 words) - 01:22, 15 December 2023
- angles, like the sextant or Hadley's quadrant, by the reflection of light from two plane mirrors which it carries, and differing from the sextant chiefly in
- 1601, AB is a ray of light from a celestial body. The index mirror of the sextant is at B, the horizon glass at C, and the eye of the observer at D. Construction
- taught me to claim no possessions, that none may claim me. Master Po: The sextant was only a memory, which you could keep not only in your heart, but in
- passed. The astrolabe was replaced by the sextant as the chief navigational instrument in the 18th century. The sextant measured celestial objects in relation