| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,807,065,917 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
backsight |
Also found in: Dictionary/thesaurus | 0.03 sec. |
|
backsight [′bak‚sīt] (engineering) A sight on a previously established survey point or line. Reading a leveling rod in its unchanged position after moving the leveling instrument to a different location. (navigation) A marine sextant observation of a celestial body made by facing 180° from the azimuth of the body and using the visible horizon in the direction in which the observer is facing. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | |
|---|---|---|
These problems cover all regularly encountered navigation situations, as well as those that are only occasionally used and often forgotten, such as backsight, shooting and unknown body, finding Venus in daylight, and storm avoidance. 2) Set at a river choke point on some generic veldt anywhere in the Transvaal, the story's main character, a young and energetic Lieutenant Backsight Forethought, has a series of nightmares in which he loses battle after battle against his Boer adversaries. In the laser rangefinder interface, backsight and foresight functions were added for enhanced data collection in obstructed situations. |
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|