AeroVironment’s Remote Control Nano Hummingbird

AeroVironment's Nano Hummingbird looks like a real hummingbird but is a clever spy remote control.  The Nano Hummingbird is only 6.5-inches wide (from wingtip to wingtip) and weighs only 19 grams (less than a AA battery).  This tiny remote control hummingbird can climb and descend vertically, fly forward and backward,…