8. Euler's Pendulum

• Take a thick plate of non-magnetic ma­terial and fix a neodymium magnet on top of it. Suspend a magnetic rod (which can be assembled from cylindrical neo­dy­mium magnets) underneath it. Deflect the rod so that it touches the plate only with highest edge and release it. Study the motion of such a pendulum under various conditions.
• 取一非磁性材料的厚板并在其上固定一个钕磁铁。在板下方悬挂一根磁性棒(可由一系列圆柱形钕磁铁组装而成)。偏转此棒使其只有顶部的边缘与板接触，然后释放它。研究这个摆在不同条件下的运动。

指导老师：苏卫锋

助教：罗熠晨

张世范 冯靖 李秋奇

• Wikipedia (2022). https://en.wikipedia.org/wiki/Eddy_current

• Wikipedia (2022). https://en.wikipedia.org/wiki/Magnetoresistance

• Wikipedia (2022). https://en.wikipedia.org/wiki/Hall_effect

• China Ferrite And Neodymium Magnet Manufacturer (Supplier) – Courage Magnet. https://www.dgcourage.com/xinwen/hyxw/318.html

• D. Rantidev, Are Rare Earth Magnets Conductive? https://keepthatshort.com/are-rare-earth-magnets-conductive

• Caps, H., Dorbolo, S., Ponte, S., Croisier, H., & Vandewalle, N. Rolling and slipping motion of Euler’s disk. Physical Review E, 69(5), (2004).

• Stanislavsky, A. A., & Weron, K. Nonlinear oscillations in the rolling motion of Euler’s disk. Physica D: Nonlinear Phenomena, 156(3-4), 247–259, (2001).