For example, "an airfoil uses aerodynamic lift to carry its weight. But the dragonfly uses a lot of aerodynamic drag to carry its weight. That is weird, because with airplanes you always think about minimizing drag. You never think about using drag."
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/blog/show/cornell-research-into-dragonfly-micro-air-vehicle-mav