A simple water pump can be made using a straw shaped into a triangle and cut open at the vertices. When such a triangle is partially immersed in water with one of its vertices and rotated around its vertical axis, water may flow up through the straw. Investigate how the geometry and other relevant parameters affect the pumping speed.

可以使用塑造成三角形并在顶点处剪开的吸管制作一个简单的水泵。当这样的三角形部分浸没在水中，并围绕其垂直轴旋转时，水可能会通过吸管流动。调查几何形状和其他相关参数如何影响抽水速度。