Water football
By pushing a large amount of water through a small opening, water pressure is generated. The smaller the opening and the higher the pressure, the more powerful the water jet becomes.
In this setup, you can move balls, but some machines are so powerful that the water jet can cut through almost any material, even through iron... That's how strong water can be!
The smaller the opening and the higher the pressure, the more powerful the water jet becomes.
#waterpressure