把半个鸡蛋壳扣在桌面上,拿一支铅笔,笔尖朝下,高距蛋壳10厘米左右,垂直下落,击在蛋壳顶部,蛋壳不破。拿一个鸡蛋握在手里,只要用力均匀,蛋壳也不会碎。薄薄的蛋壳为什么能承受这么大的力量呢?在乌龟的背上,站一个人,乌龟虽然藏头缩尾,但仍安然无恙。 Put one half of the egg shell on the table, take a pencil, and the tip of the pen is down. The high-pitched eggshell is about 10 centimeters long and falls vertically. It hits the top of the eggshell and the eggshell is not broken. Hold an egg in your hand, as long as the force is uniform, the eggshell will not break. Why can a thin egg shell withstand such a large force? Standing on the back of a turtle, a turtle who, despite hiding its head, is safe and sound.