Convertir cubit (uk) en mètre

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Vice versa: mètre en cubit (uk)

Cubit (UK)

La cubit is one of the oldest known units de longueur, à l'origine basé sur the distance from the elbow to the tip of the middle finger. La English cubit was standardised at 18 inches (approximativement 0.4572 metres), though ancient variants ranged from environ 44 to 53 centimetres depending on civilisation. The cubit was fundamental to construction and trade in ancient Egypt, Mesopotamia, and across the classical world, and appears throughout historical texts including the Hebrew Bible. 


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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