While it might be inspired by a duck, Flimmer certainly isn’t built like one. It has fins hidden on the ends of its wings, like a cubist's suggestion of what duck-ness might really be. In flight, these fins fold upwards to stabilize the craft, and a pusher propeller at the back of the Flimmer provides thrust. In the water, the rear fins, as well as a second pair further up the body, steer the robot. Flimmer can not only fly through the air and swim, but it can make the transition between the two easily. On smooth seas, it can land like a seaplane, but for rougher conditions where that’s not possible, Flimmer will dive into the water like a duck.