原文：Inspired by the invention starts wit
Inspired by the invention starts wit Most primary and secondary students of science and technology innovations from the little things of life. Haikou sixth-grade students Sylvia Hung in a live demonstration of the invention of the tank cleaner principle: In order to clean the bottom of the sedimentation tank dirt, and my father will replace the water tank, waste a lot of clean water. He piston pumps according to the principle, design a fish tank cleaner. Bottom probe into its front end, pulling the piston back, the front of the valve will open, and the top of the outlet valve closes automatically, you can Bottom sewage pumping up. Then push down the piston, the valve automatically closes the front, top of the outlet valve open, water outflow from the top of the outlet. Repeat this several times, you can tank the bottom of the water all out, and not the top of water pollution.
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生活小事启动发明灵感
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