一道难题，通过巧妙思维可以简捷地获得答案，下面列举二例供同学们参考．例1水平桌面上有叠圆形金属片如图1状摆放最下面块的物重为G面积为S，它相邻的上面一块金属片物重为G／2，面积为S／2，以此类推，金属块的物重和面积逐渐减半，一直叠下去，则每块金属片上表面所受压强 A difficult problem can be solved simply and cleverly. Here are two examples for students' reference. Example 1 has a horizontally stacked metal piece on the horizontal table. The weight of the lowermost block is shown in Figure 1. The area of ​​G is S, and the weight of an adjacent metal piece above it is G/2 and the area is S/2. By analogy, the weight and area of ​​the metal block are halved, and the pressure on the top surface of each metal plate is continuously stacked.