We carried out an experimental study of the floating of a square bar in water and found its equilibrium orientation (tilting angle) as a function of relative density ρ _bar/ρ _water. Though the theoretical solution of this problem was given in 1963 by Reid, we provided our solution that is more transparent and less cumbersome, enabling an introductory level physics student to follow it. Our experimental method is very simple and easily reproducible in a school-level physics laboratory, and obtained data fit the theoretical results quite reasonably.

中文翻译：

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长方条的浮动：实验与理论

我们对方形棒在水中的漂浮进行了实验研究，发现其平衡方向（倾斜角）是相对密度ρ _bar / ρ _water的函数。尽管 Reid 于 1963 年给出了这个问题的理论解决方案，但我们提供的解决方案更加透明且不那么麻烦，使入门级物理学生能够遵循它。我们的实验方法非常简单，在校级物理实验室容易重现，所得数据与理论结果相当合理。