搜索 - 科创

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1、前言Richard Nakka是火箭业余爱好者中的大神级人物，从事业余火箭设计制作四十余年，很显然他在固体火箭燃料、固体火箭发动机以及箭体方面的宝贵经验，是值得我们学习与借鉴的。在此，为了方便给位...

在上次sg6发射船有惊又有险的失控（详见本人文章）后，我彻底放弃了水上发射的计划，但火箭做好了放那积灰总不成啊，于是设计了这次发射。当然得进行一些改动，首先改装一辆大号玩具车（本买了准备造坦克的），装...

参考文献海东，中国孩子敢向新世纪发问吗？北京晚报，1999年4月13日第一版。 Rudolf Arnheim, Visnal Thinking, University of California Pr...

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