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Ligne (Ardèche)
The ''ligne'' ( ), or line or Paris line, is a historic unit of length used in France and elsewhere prior to the adoption of the metric system in the late 18th century, and used in various sciences after that time. The ''loi du 19 frimaire an VIII'' (Law of 10 December 1799) states that one metre is equal to exactly 443.296 French lines. It is vestigially retained today by France, French and Switzerland, Swiss wristwatch, watchmakers to measure the size of watch casings, in button making and in ribbon manufacture. Current use Watchmaking There are 12 ''lignes'' to one Units of measurement in France before the French Revolution, French inch (''pouce''). The standardized conversion for a ligne is 2.2558291 millimetre, mm (1 mm = 0.443296 ''ligne''), and it is abbreviated with the letter L or represented by the triple Prime (symbol), prime, . One ligne is the equivalent of 0.0888 international inch. This is comparable in size to the British measurement cal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Line (unit)
The line (abbreviated L or l or ‴ or lin.) was a small English unit of length, variously reckoned as , , , or of an inch. It was not included among the units authorized as the British Imperial system in 1824. Size The line was not recognized by any statute of the English Parliament but was usually understood as of a barleycorn, which itself was recognized by statute as of an inch. The line was eventually decimalized as of an inch, without recourse to barleycorns. The US button trade uses the same or a similar term but defined as one-fortieth of the US-customary inch (making a button-maker's line equal to 0.635 mm). In use Botanists formerly used the units (usually as inch) to measure the size of plant parts. Linnaeus's ''Philosophia botanica'' (1751) includes the Linea in its summary of units of measurements, defining it as "Linea una Mensurae parisinae"; Stearns gives its length as 2.25 mm. Even after metrication, British botanists continued to employ tool ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
