论文部分内容阅读
由於陝西張俊德發明「三球儀」的啟發,廣西南寧市一中敎師兼儀器管理員黃東元自己設計創造了一個紙質的「三球儀」,曾在南寧市政展覽會上展出,受到了觀眾一致的贊許。根據武漢大學物理系研究的結果,這一個三球儀有四項優點:(一)可以表示太陽的自轉,地球的自轉與公轉,月亮的自轉與公轉,這些轉動的週期都正確地表示了出來,可以明瞭年、月、日、時興三球相對位置的關係。(二)地軸常指一定方向與公轉面成正確角度,並突出地表示了公轉過程中遠日、近日的情況,使觀察者可以明暸四季的成因。(三)可以表示月的盈缺,並突出地表示了黃白交角,避免了一般「三球儀」所存在的每逢初一、十五便有日、月蝕發生的錯誤現象。(四)可以表示月球常以同一面向著地球的現象。這
Inspired by Zhang Junde’s invention of “three-ball instrument” in Shaanxi Province, Huang Dongyuan, a middle school teacher and instrumentation administrator in Nanning, Guangxi Province, designed and created a paper-based “three-ball instrument” that was exhibited at the Nanning Municipal Exhibition and was subjected to The audience’s unanimous approval. According to the results of the research conducted by the Department of Physics, Wuhan University, this three-sphere instrument has four advantages: (1) It can indicate the rotation of the sun, the rotation and revolution of the earth, the rotation and revolution of the moon, and the periods of these rotations are correctly expressed , You can understand the year, month, day, fashionable relationship between the relative position of three balls. (2) The geodetic axis usually refers to a certain direction and the plane of revolution is a correct point of view, and prominently expressed the revolution in the far days, the recent situation so that observers can understand the causes of the four seasons. (C) It can represent the deficit of the month and prominently show the angle between the yellowishness and the gregarious. It avoids the erroneous phenomenon of daily and lunar eclipse occurring in the ordinary “three-ball” during the first and fifth days. (D) can be said that the moon often the same face the phenomenon of the Earth. This