Once only used by the military or hobbyists, unmanned aerial vehicles, commonly known as drones, are quickly becoming cheap, but valuable, tools for various professionals - from rescue squads to farmers. A company in France uses drones to help farmers analyze their crops. VOA’s George Putic reports.
from Voice of America http://ift.tt/1BKah6t
from Voice of America http://ift.tt/1BKah6t
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