地球附近的任何物体都要受到地球的重力作用。不知你是否想过,重力一旦消失,将会产生什么现象。我们不妨做一个小实验来观察一下失重现象。 找一个用过的矿泉水塑料瓶,在瓶盖上钻一个大孔,在靠近底部的侧面再打一个小孔,用手指堵往瓶侧面的孔,在里面装上水,拧上带孔的瓶盖。移开手指,由于下层水受到上层水的压力作用,水就会从小孔中射出来。如果松开手,让瓶子自由落下,在下落过程中,水将不再从孔中射出。这是为什么呢?原来是田于失重现象造成的。难道下落的瓶子和水真的失去 Any object near the earth is subject to the gravity of the earth. I wonder if you ever wondered if gravity would disappear and what would happen. We may wish to make a small experiment to observe the phenomenon of weightlessness. Find a used plastic bottle of mineral water. Drill a large hole in the cap. Make a small hole near the bottom. Block the hole in the side of the bottle with your finger. Fill it with water and screw it with holes. Bottle caps. When you remove your finger, the water will come out of the hole because the lower layer of water is under pressure from the upper layer of water. If you release your hand and allow the bottle to fall freely, water will no longer be ejected from the hole during the fall. Why is this? It was originally caused by the weightlessness of Tian. Is the falling bottle and water really lost