A unit of length in the imperial system, the plural is feet. The symbol is ft. Today, 1 foot is 304.8 millimeters, one third of a yard, or 12 inches. It originated in the ancient Orient, where it was derived from the length of a foot. Since ancient times, each ethnic group and country has been called by a word that means their own foot. From ancient Egypt to the Greek and Roman eras, 1 foot was between 290 and 310 millimeters. Since it was originally a unit for measuring land, integer multiples were used as units of distance. A passus is 5 Greek feet, or 147.5 centimeters, which is two steps, or one compound step, used by the Greek and Roman military. 1000 times a passus is the milia passus, which is the origin of the later mile. [Koizumi Kesakatsu] [Reference] | |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
ヤード・ポンド法の長さの単位で、複数はフィートfeetとよぶ。記号はft。現在の1フートは304.8ミリメートル、1ヤードの3分の1、12インチにあたる。起源は古代オリエントで、足の長さから発した。昔から、各民族や国家で、それぞれの足を意味することばでよばれてきた。古代エジプトからギリシア・ローマ時代にかけての1フートは290から310ミリメートルの間にある。もともと土地を測る目的で始まった単位なので、距離の単位としては整数倍が使われた。パッススは5ギリシアフィートで147.5センチメートル、これはギリシア・ローマ時代の軍隊が使った2歩、つまり1複歩である。パッススの1000倍がミリア・パッススで、これが後のマイルmileの起源である。 [小泉袈裟勝] [参照項目] | |出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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