搜索 - 科创

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好久没上kc了，嘿嘿，一来就有种亲切感。刚才在优酷上看到的，不知道有没有人发过。 2011年9月30日的11:08，德里克 - 德维尔的Qu8k（发音为“Quake雷神”）在内华达州的...

当火箭到达最高点时，火箭与周围的气流在竖直方向上是静止的（假设没有向上或向下的风）那么就可以在火箭侧面安装一个教敏感的测风的装置，当火箭脱离发射架时开始工作，连接上一个简易的点火电路，然后点燃开伞药『比如用带有弹簧及可变电阻

KCSA火箭超音速是两个月之前的事情了。加速度取决于火箭的质量和发动机推力。单级固体火箭推力大，推力持续时间短，自身质量小，加速度就大。空空导弹、地空导弹和固体燃料的火箭弹，起飞加速度都很大。

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