A student experiment showed toilet water was cleaner than a fountain at school. June 19, 2007 — -- Thirteen-year-old Kyleray Katherman never imagined a simple school project would garner him ...
When water is poured into the top bulb of the fountain, water from the middle bulb will squirt higher than the height of the fountain. Water falling from the top bulb pushes air from the bottom bulb ...
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