The British Ministry of Defense has a new fleet of helicopters that weigh less than an ounce. Called Black Hornet Nanos, the miniature drones are aimed at keeping troops safer by giving them a tiny ... more 
The British Ministry of Defense has a new fleet of helicopters that weigh less than an ounce. Called Black Hornet Nanos, the miniature drones are aimed at keeping troops safer by giving them a tiny eye-in-the-sky. less 
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Tue, Feb 5, 2013 12:50 PM EST