UP主： 封面： 简介：13. The singing ruler When a ruler is clamped at one end and struck, it oscillates and emits a characteristic sound. Investigate how the sound depends on relev...
IYPT青年物理学家的视频 IYPT/CUPT2026| P13 The singing ruler歌唱的尺子之居家必备实验 IYPT/CUPT2025| P7 Ruler Cannon尺子加农炮——都来挑战一下吧！ IYPT/CUPT 2024参考资料| P15-Wet Scroll 湿纸卷-超高清细节
