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Le pouce (symbole : ″ (double prime) ou po au Canada francophone) est une unité de longueur datant du Moyen Âge. Sa valeur dimensionnelle a varié suivant les époques, les régions et les pays. Depuis 1959, à la suite d’un compromis anglophone, le pouce anglais — aussi nommé « pouce technique international » — vaut 2,54 cm ...
Table of length units. 1⁄12 of a ligne. This unit is usually called the Truchet point in English. Prior to the French Revolution the Fournier point was also in use. It was 1⁄6 of a ligne or 1⁄864 of the smaller French foot. 1⁄12 of a pouce. This corresponds to the line, a traditional English unit. 1⁄12 of a pied du roi.
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The metre, for length – defined as being one ten millionth of the distance between the North Pole and the Equator through Paris. The are (10.000 m 2) for area [of land] The stère (1 m 3) for volume of firewood. The litre (1 dm 3) for volumes of liquid.
The inch (symbol: in or ″) is a unit of length in the British Imperial and the United States customary systems of measurement. It is equal to 1 36 yard or 1 12 of a foot.
The metric system is a number of different systems of measurement with length based on the metre, mass on the gram, and volume on the litre. [1] This system is used around the world. It was developed in France and first introduced there in 1795, 2 years after the execution of Louis XVI.
The pied and pouce, at approximately 333.3 mm and 27.78 mm, were about 2.6% larger than the previous Parisian measures and 9% larger than their English counterparts. The aune ( ell ), used to measure cloth, was defined as 120 centimetres, and divided into the demi aune (half an ell, or 60 cm) and the tiers aune (third of an ell, or 40 cm).
1 psi in ... ... is equal to ... SI units. 6.894757 kPa. The pound per square inch (abbreviation: psi) or, more accurately, pound-force per square inch (symbol: lbf/in2 ), [1] is a unit of measurement of pressure or of stress based on avoirdupois units.
