A collection of working paper models to cut out and make. As the mechanisms are operated, the hopping sheep hop energetically and the pecking hen pecks into its feeder. The motley man bows and acknowledges the applause he has earned and the flying fish flaps and undulates its wings. Each of the mechanisms uses a different principle to generate motion.
评分
评分
评分
评分
本站所有内容均为互联网搜索引擎提供的公开搜索信息,本站不存储任何数据与内容,任何内容与数据均与本站无关,如有需要请联系相关搜索引擎包括但不限于百度,google,bing,sogou 等
© 2025 book.wenda123.org All Rights Reserved. 图书目录大全 版权所有