December 02, 2011

Invention: Nano Air Vehicle

It looks and flies like a hummingbird. But don't be fooled. This tiny aircraft, called the NANO AIR VEHICLE (NAV), is a spying device. The remote-controlled, $4 million NAV has a built-in video camera. Because it is so small, it can go where humans can't. It can scout out safe spots in combat zones, search for earthquake survivors and even locate a chemical spill. Watch this video from to see how it works (Video provided by Almudena Toral/

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