: The word “drone” comes from the buzzing sound that early models made., Some drones are small enough to fit in the palm of your hand., Farmers use drones to check crop health and spray fertilizers., Drones have been used to deliver pizza and coffee as part of marketing tests., Drones can create 3D maps by scanning the ground with lasers or cameras., : All drones are large and require special airports to take off., Drones can only fly for a few seconds before the battery dies., Drones can’t be used in filmmaking because their cameras are too shaky., It’s legal to fly a drone anywhere, including airports and crowded places., Drones cannot operate over oceans because GPS doesn’t work there.,

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