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发表于2024-08-19
Fun with Science pdf epub mobi txt 电子书 下载 2024
The Mystery of the Balancing Butterflies, The Lighted-Bulb Puzzle, The Invisible Movie Screen, The Suspended Paper Clip, The Water-Pail Hoax and other feats that demonstrate basic scientific principles. With easy-to-follow instructions, helpful illustrations, and suggestions for patter and staging -- the better to turn young demonstrators into accomplished performers.
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Fun with Science pdf epub mobi txt 电子书 下载 2024