Which one vanishes? 那一個消失了？
Want to try a simple
one? 先從較簡單的開始
original ideal from "The Vanishing Leprechaun"
Your suggestions are highly appreciated! hwang@phy03.phy.ntnu.edu.tw
Dept. of Physics, National Taiwan Normal Univ. (Virtual
Physics Laboratory)
歡迎提供建議或意見！ 國立台灣師範大學 物理系 物理
教學/示範實驗 教室
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