- horizon glass (of sextant)
- малое зеркало (секстана)
English-Russian marine dictionary . 2014.
horizon glass (of sextant)
Смотреть что такое "horizon glass (of sextant)" в других словарях:
horizon glass — horizon glass, the fixed mirror of a sextant, in which the horizon is reflected … Useful english dictionary
Sextant — This article is about the sextant as used for navigation. For the astronomer s sextant, see Sextant (astronomical). : For the history and development of the sextant see Reflecting instruments A sextant is an instrument generally used to measure… … Wikipedia
mirror sextant — mirror sextant, the common sextant having a horizon glass and an index glass … Useful english dictionary
index glass — noun : the mirror on the index bar of a sextant or similar instrument * * * index glass, the movable mirror of a sextant, which reflects the image of the sun or other object upon the horizon glass … Useful english dictionary
Bris sextant — The Bris sextant (pronEng|bɹiːs) is not a sextant proper, but is a small, inexpensive, angle measuring device that can be used for navigation.Sven Yrvind (Lundin) developed his Bris sextant as part of his quest for low cost, low technology… … Wikipedia
Navigation — This article is about determination of position and direction on or above the surface of the earth. For other uses, see Navigation (disambiguation). Table of geography, hydrography, and navigation, from the 1728 Cyclopaedia. Navigation is the… … Wikipedia
Octant (instrument) — Octant. This instrument, labelled Crichton London, Sold by J Berry, Aberdeen, appears to have an ebony frame with ivory scale, vernier and signature plate. The index arm and mirror supports are brass. Rather than use a sighting telescope, this… … Wikipedia
navigation — navigational, adj. /nav i gay sheuhn/, n. 1. the act or process of navigating. 2. the art or science of plotting, ascertaining, or directing the course of a ship, aircraft, or guided missile. [1520 30; < L navigation (s. of navigatio) a voyage.… … Universalium
Timeline of Islamic science and engineering — This timeline of Islamic science and engineering covers the general development of science and technology in the Islamic world during the Islamic Golden Age, usually dated from the 7th to 16th centuries.From the 17th century onwards, the advances … Wikipedia
Reflecting instrument — Reflecting instruments are those that use mirrors to enhance their ability to make measurements. In particular, the use of mirrors permits one to observe two objects simultaneously while measuring the angular distance between the objects. While… … Wikipedia
Glossary of nautical terms — This is a glossary of nautical terms; some remain current, many date from the 17th 19th century. See also Wiktionary s nautical terms, Category:Nautical terms, and Nautical metaphors in English. Contents: A B C D E F G H I J K L M N O P Q R … Wikipedia
