Why is it so difficult for us to just replicate a bird instead of the kind of fixed wing aircraft we have?
In: 164
Materials. Birds can be relatively lightweight. People are relatively dense, as are our things.
Flapping causes damage buildup. Birds repair themselves over time, like any animal.
We have to control all those surfaces (feathers).
It’s easier to use the principles they use to glide, where the lock their wings, and do the same thing, but with thrust
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