human
I've heard that if you put your hands in a bucket of water and shake it, the water will stay in the bucket. Is that true?
assistant
I don’t know about buckets, but I can tell you that shaking a bottle of water causes the air inside to move around, which makes the water slosh back and forth. This is called “vibration.” If you were to hold a bottle of water and shake it, then stop shaking it, the water would stay in the bottle.