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In daily life, many bottles that the water is not drunk off are directly discarded by the people. The globally discarded bottles that the water is not drunk off reach up to 4,000t! This is not only waste a lot, but also bring many troubles in recycling.The telescopic bottle is designed in principle of Galileo telescope, including the lip (a biconcave lens) and the base (a biconvex lens), so that the empty bottle feathers a telescope.For kids, this bottle can not only allow them to culture a good habit of saving the water, but also mobilizing their curiosity so that they are interested in the scientific knowledge.
Beijing Institute of Technology,
Beijing Institute of Technology,Zhuhai