Have you ever seen the fish tank shown in the picture below? There is a notch in the middle or lower part of a mineral water bottle or a soda can, but the water doesn't spill out. Don't you think it's magical?
In fact, as long as you still remember your junior high school physics knowledge, you wouldn't be surprised. This is due to the effect of atmospheric pressure that leads to this amazing result!
So how to make it? It's very simple, you can have the magical fish tank above by just following 3 steps!
1. Find a transparent mineral water bottle or a soda can.