搜索 - 科创

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“创世纪”号发射成功北京时间2月22日9时45分，SpaceX的猎鹰9号在卡角空军基地SLC-40发射平台，同时发射了印尼通信卫星Nusantara Satu，以色列的首个月球探测器创世纪（Beres...

在SDR领域，RTLSDR是好东西，可惜就是升级空间太低了，不管是修改RF-font电路，还是换用TXCO，还是使用上变频来扩展使用HF频段。感觉效果还是离专业HF波段SDR设备有很大差距。RTLSD...

既然我们已经有了推力架，那么为什么我们不应该拥有一台氢氧火箭发动机呢？就像这个春天为什么不会如期而来呢？这里我们简单设计一台地面推力100N的气态氢氧火箭发动机。1.发动机主要参数计算设计型面如图所示...

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