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Vortex Tube	Go back to: Water Toys
	Quantity in Basket: none Product Code: T0905 Price: $1.99 Shipping Weight: 0.07 pounds
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Vortex Tube Use with your 2 liter pop bottles. Give it a whirl and watch a tornadic vortex develop. The swirling water creates higher pressure around the outer edge and lower pressure in the center. Air from the bottom bottle can then travel through the vortex into the upper bottle allowing the water to move down. Outer winds in a real tornado spiral upward and inner winds move down through the vortex.