关于“动尺”视觉形象的教学探讨

Teaching Exploration on the Vision Image of Moving Length

文章推导了"动尺"的视觉成象公式,并利用计算机作图,给出了可视化的"视觉形象"结果。结果表明"动尺"的视觉形象受到诸多因素的影响,并非如"测量形象"那样总是缩短。文章的探讨有助于对爱因斯坦狭义相对论时空观的正确理解。

This paper deduces the formula about the vision image of moving length, and then plots the vision image with MATLAB. The results show that the factors which affect the visual image are various. This discussion can help to understand the space - time theory in the special theory of relativity properly.