当我们将两米半的PVC管内塞入一个乒乓球，两端覆盖上隔热铝箔，抽出98%的空气，在一端放上易拉罐并刺破另一端的铝箔时，会发生什么？准备好了吗？三，二，一。（砰！）哇，那声音真大 - 让我们来看看罐子上的损伤。
Have you ever wondered what makes a ping-pong ball fly out of a pipe with such force? Or how a cyclist can maintain a steady speed? Welcome to the fascinating world of kinematics, where the physics of motion comes to life. Let's dive in and explore the science that governs how objects move.