http://www.wtfnews.org/ Stories tagged robot hummingbird en-us Tue, 18 Jun 2013 23:09:59 -0400 http://www.wtfnews.org/science-technology/robot-hummingbird-spies-unveiled/ A hummingbird-shaped spy drone that could fly undetected into enemy positions has been unveiled in the US. The Nano Hummingbird has a wingspan of 6.5 inches and weighs 19 grams, less than an AA battery. Developed over five years at a cost of £2.5m, the Nano Hummingbird can fly up to 11mph and can fly up and down, forwards and backwards, sideways and can rotate. During a demonstration, it flew in and out of a building through a normal-size doorway%2... ]]> Tue, 22 Feb 2011 17:57:20 -0500 http://www.wtfnews.org/science-technology/robot-hummingbird-spies-unveiled/