Definition of Backsight. Meaning of Backsight. Synonyms of Backsight

Here you will find one or more explanations in English for the word Backsight. Also in the bottom left of the page several parts of wikipedia pages related to the word Backsight and, of course, Backsight synonyms and on the right images related to the word Backsight.

Definition of Backsight

Backsight
Backsight Back"sight`, n. [Back, adv. + sight. ] (Surv.) The reading of the leveling staff in its unchanged position when the leveling instrument has been taken to a new position; a sight directed backwards to a station previously occupied. Cf. Foresight, n., 3.

Meaning of Backsight from wikipedia

- either another known point or along an azimuth, which is to be held as a backsight — sighting with the reticle inside the eyepiece — then holding that line...
- short 1904 book by the British Army officer Ernest Swinton. Lieutenant Backsight Forethought (BF) and his command of fifty men are given the task to defend...
- two foresights and two backsights and makes sure the difference between the foresights and the difference between the backsights are equal, thereby reducing...
- April 1916. p. 3994. Swinton, Ernest (under the pseudonym "Lieutenant Backsight Forethought"), The Defence of Duffer's Drift, Oxford: United Service Magazine...
- It was ****ed with a "globe and pinhead" foresight and a "buckhorn" backsight on the barrel. It also featured a well-made peep sight ****ed on the small...
- rod back and forth until it accurately lined up with another one as a backsight or foresight) and the Welsh verb 'dodi' meaning to lay or place. He thus...
- vertical ****s. The foresight is sloted in, mostly semi-round, while the backsight is a long, V-shaped groove on the top strap above the cylinder. It has...
- An Elton's quadrant is a derivative of the Davis quadrant. It adds an index arm and artificial horizon to the instrument, and was invented by English sea...
- and the burial mounds that surround it were designed specifically as backsights for astronomical observations of the Moon. Graham Ritchie points out that...
- military tactics manual, framed as a series of six dreams by "Lieutenant Backsight Forethought" about the defence of a river crossing in the Boer War. BF...