本刊2004年第10期《从一个探究实验看物理规律的发现》一文通过实验去探究圆柱形容器中水流尽的时间t跟容器横截面直径D、容器底部圆孔直径d和水的初始深度H之间的关系,参见插图.在得到了图1相应的物理规律和经验公式之后,又进行了理论推导,证实了这个经验公式经得起实验和理论 The article “Discovery of Physical Law from an Inquiry Experiment” explores through experiments the time t of water flow in a cylindrical vessel, the diameter D of the cross section of the vessel, the diameter d of the circular hole at the bottom of the vessel, and the initial depth of water. The relationship between H, see the illustration. After the corresponding physical laws and empirical formulas of Figure 1 were obtained, a theoretical derivation was carried out, confirming that this empirical formula can withstand experiments and theories.