Orphureus - Orphureus

Japanese: オルフュレウス - おるふゅれうす
Orphureus - Orphureus

...A wheel with a diameter of 14 feet (4.3 m) using 40 balls weighing 50 pounds (22.7 kg). This was only an idea, but Johann Ernst Elias Bessler (Latin name Orffyreus, 1680-1745) actually built a wooden wheel with a diameter of 12 feet (3.7 m) and a width of 1 foot 2 inches (36 cm). An eyewitness reported this device to Newton, but the inside was covered with a cloth to prevent anyone from seeing inside, so it was unclear whether any external forces were acting on the axle. ...

*Some of the terminology explanations that mention "Orphyreus" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…重さ50ポンド(22.7kg)の球を40個使った直径14フィート(4.3m)の車輪である。これはアイデアだけであったが,ベスラーJohann Ernst Elias Bessler(ラテン名オルフュレウスOrffyreus,1680‐1745)が直径12フィート(3.7m),幅1フィート2インチ(36cm)の木製車輪を実際につくってみせた。この装置については目撃者がニュートンに報告しているが,布を掛けて内部が見えないようにしてあり,軸に外力が働いていないかどうかは不明であった。…

※「オルフュレウス」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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