Units of measurement in France before the French Revolution 4 parts in one million) than the "pied" used in France. According to the law of 19 Frimaire An VIII (December 10, 1799), Traditionally, the French pound ("livre") was defined as the mass of exactly of a French cubic foot of water. When the kilogram was defined, the knowledge that a "pied du Roi cube" filled with water masses exactly 70 French pounds was apparently lost. According to the traditional (cubic foot) definition, one "livre" would have been about 489.675 grams. According to the kilogramme definition, one "livre" was about 489.506 grammes. The difference is about 0.035%. However, a small
Pied butcherbird for up to 45 minutes, often mimicking many other bird species as well as dogs barking, lambs bleating or even people whistling. In the breeding season, pied butcherbirds sing the "breeding song" at night until dawn, when they switch to the day song. This song is longer and more complex than the day song. In response to threats, pied butcherbirds may chatter or make a harmonic alarm call composed of short, loud descending notes. The black hood helps distinguish the pied butcherbird from other butcherbirds, the Australian magpie and much smaller magpie-lark, the latter of which also has a much