The accuracy will mainly depend upon our base-line being not excessively short in comparison with the distance to be measured.
The first thing noticeable is the periodic displacement of the base-line.
Lunging out of the base-line he struck Jack in the back with his left shoulder with all the force he could summon.
Likewise the ownership of God is the base-line for all measurements of truth about property.
The man at bat had found a high ball and had sent it whizzing down the base-line, eight feet or more in the air.
We would aim for the base of the twin peaks, and pursue our course southerly to lands unknown, along the base-line.
Kekwick and I commenced chaining the base-line from the top of Mount Charles, bearing 131 degrees.
Raymond caught it directly in the base-line, and then, from the impact of the sliding Prince, he went hurtling down.
The second day, however, we came to a surveyor's base-line cut through the woods.
In measuring the distance of the moon, the earth's diameter, or a considerable portion of it, has served as a base-line.
1818, from Medieval Latin triangulationem (mid-12c., nominative triangulatio), noun of action from Latin *triangulare, from triangulum (see triangle).
"bottom, foundation, pedestal," early 14c., from Old French bas "depth" (12c.), from Latin basis "foundation," from Greek basis "step, pedestal," from bainein "to step" (see come). The military sense is from 1860. The chemical sense (1810) was introduced in French 1754 by French chemist Guillaume-François Rouelle (1703-1770). Sporting sense of "starting point" ia from 1690s, also "destination of a runner" (1812). As a "safe" spot in a tag-like game, suggested from mid-15c. (as the name of the game later called prisoner's base).
late 14c., "low, of little height," from Old French bas "low, lowly, mean," from Late Latin bassus "thick, stumpy, low" (used only as a cognomen in classical Latin, humilis being there the usual word for "low in stature or position"), possibly from Oscan, or Celtic, or related to Greek basson, comparative of bathys "deep." Figurative sense of "low in the moral scale" is first attested 1530s in English, earlier "servile" (1520s). Base metals (c.1600) were worthless in contrast to noble or precious metals.
"to place on a foundation," 1841, from base (n.). Related: Based; basing.
The part of an organ nearest its point of attachment.
A fundamental ingredient; a chief constituent of a mixture.
Any of a large class of compounds, including the hydroxides and oxides of metals, having a bitter taste, a slippery solution, the capacity to turn litmus blue, and to react with acids to form salts.
A molecular or ionic substance capable of combining with a proton to form a new substance. Also called Brønsted base.
A nitrogen-containing organic compound that combines in such a manner.
A substance that provides a pair of electrons for a covalent bond with an acid.
A method of determining the relative positions of points in space by measuring the distances, and sometimes angles, between those points and other reference points whose positions are known. Triangulation often involves the use of trigonometry. It is commonly used in the navigation of aircraft and boats, and is the method used in the Global Positioning System , in which the reference points are satellites.
Any of a number of bitter-tasting, caustic materials. Technically, a material that produces negative ions in solution. A base is the opposite of an acid and has a pH of 7 to 14. A given amount of a base added to the same amount of an acid neutralizes the acid; water and a salt are produced. Alkalis are bases; ammonia is a common base.