解读西藏阿里黄金面具：或与古老王国密切相关
百度 他说：“作为我们昨天所作决定的结果，我预计众多成员国将于26日对俄罗斯采取额外措施。
Questions about the different choices that aircraft designers (typically aerospace engineers) make in order to create an aircraft.
2 questions from the last 7 days
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Why the Lancair speed brakes are so different?
Looking at different airplanes most airplanes with speed brakes have a similar aileron like speed brakes. Why does the Lancair uses this different design instead of the more common ones?
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How is this quadcopter so stable with props so close to CG/Fuselage? [migrated]
How can this quadcopter be so stable having its propellers so close to the center CG. Isn't this suppose to affect its balance?
Here is an image with a top and bottom view, you can see how the props ...
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