Mars Helicopter (before it went to Mars)
推荐理由
a really excellent video that answers all your questions
强烈推荐kibwen · 原文
说明
这是2019年由Veritasium发布的一部讲解,主题归在Aviation & aerospace engineering。它讲的是mars helicopter这一支里的具体问题,而不是把整个领域扫一遍。适合按兴趣直接看、不打算先补课的人。内容上可以概括成:Veritasium's Derek Muller visits NASA JPL to see the Mars helicopter Ingenuity before it was mounted on the rover. He explains how it can fly in Mars's thin atmosphere with large, fast-spinning contra-rotating rotors and low mass, and covers power and cold.这些读者给出的理由,核心是:HN repeatedly recommends it as an excellent explanation of why flying on Mars is hard and how the helicopter was built.讲法不绑某一条新闻,过几年仍然可以当材料看。从2020年到2021年,有10位不同的读者在4个不同月份把它推荐出来,其中明确叫别人去看的有1次。适合用一集把一个概念补上的人。抓住它用的那个图像或类比,比背公式重要。如果已经会了基本定义,就把注意力放在它怎么把mars helicopter变成能跟着复述的例子。
视频信息
- 频道
- Veritasium
- 时长
- 16 分 1 秒
- 发布年份
- 2019
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