Nano Hummingbird
A remote-controlled hummingbird, equipped with a camera, beats its wings 20 times/second (real life hummingbirds clock up to 80). It hovers, performs rolls and backflips. It weighs 18.7 grams (lighter than a AA battery). An onboard computer corrects speed and pitch.
The first truly awe inspiring tech I have seen in a long, long time.
