1.水勺实验打开自来水,让水流较大,拿一个大铝勺(或匙勺)凸起的一面靠近水流.你会发现,铝勺不但不会被冲走,反而被水流强烈地粘住了.若你拿勺的手稍稍放松,铝勺能维持倾斜而不会离开水流,此时的水流就像倒挂的水勺,如图1所示.这是为什么呢?图1原来,在水流与铝勺之间的水层产生了小小的 1. Water spoon experiment Open the tap water, make the water flow larger, take a big aluminum spoon (or spoon spoon) on the raised side close to the water. You will find that the aluminum spoon not only will not be washed away, but will be strongly adhered by the water stream. If you take the spoon to loosen the hand slightly, the aluminum spoon can keep tilting without leaving the water stream. At this time, the water flow is like an inverted water spoon, as shown in Figure 1. Why is this? Figure 1 Original, in the water stream The water layer between the aluminum spoon produced a small