Convertir cubit (greek) en mètre

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Vice versa: mètre en cubit (greek)

Cubit (Greek)

La Greek cubit was an ancient Greek unit de longueur égal à approximativement 0.4625 meters (environ 18.2 inches), basé sur the length of the forearm from the elbow to the tip of the middle finger. Il était subdivided into 24 daktylos (fingers) and formed part of the ancient Greek system of measurement utilisé en architecture, trade, and navigation. The Greek cubit was utilisé en the construction of famous monuments and influenced later Roman measurement standards. 


mètre

La metre (Commonwealth spelling and BIPM spelling) or meter (American spelling) (from the French unit mètre, from the Greek noun μετρούν, "measure") is the unité de base de longueur dans le Système international d'unités (SI) (SI). The unité SI symbol is m. Le mètre est défini comme the length of the path travelled by light in a vacuum in 1/299,792,458 of a second.

Le mètre was à l'origine defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth's circumference is approximativement 40000 km. In 1799, the metre was redefined in terms of a prototype metre bar (the actual bar used was changed in 1889). In 1960, the metre was redefined in terms of a certain number of wavelengths of a certain emission line of krypton-86. In 1983, the current definition a été adopté. 


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