A trio of tube towers that's totally not triangulated at the base and instead makes one think of a terrific trident which teaches toddlers the basics of Torricelli's law. Each tube tower has multiple outlets at different heights which can be plugged with stoppers having holes of varying aperture diameter. Three children can play simultaneously to see who can squirt water the farthest while learning how head and output affect the speed with which water leaves the hole as well as how the height the water leaves at affects the distance the water travels.
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