Any time water flows through a narrow path, it forms at least a partial whirlpool. As the water passes through the narrower opening, it accelerates and forms a more powerful force. If the downstream area then enlarges, it can mature into a complete whirlpool.
As water is pulled into an opening by gravity, it begins to spin. (See below for more information about the direction it spins.) Once this begins, it intensifies and forms a cavity in the center of the drain. The cavity creates a vacuum into which objects such as bubbles, water molecules, and other floating objects are pulled. As these objects are “sucked” into the vortex, the centrifugal (outward) force maintains the hole in the middle through which air passes.
Any time water flows through a narrow path, it forms at least a partial whirlpool. As the water passes through the narrower opening, it accelerates and forms a more powerful force. If the downstream area then enlarges, it can mature into a complete whirlpool.As water is pulled into an opening by gravity, it begins to spin. (See below for more information about the direction it spins.) Once this begins, it intensifies and forms a cavity in the center of the drain. The cavity creates a vacuum into which objects such as bubbles, water molecules, and other floating objects are pulled. As these objects are “sucked” into the vortex, the centrifugal (outward) force maintains the hole in the middle through which air passes.
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