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Drones May Soon Send Data From High Seas

Drones are usually associated with unmanned flying vehicles, but autonomous watercraft also are becoming useful tools for jobs ranging from scientific exploration to law enforcement to searching for a missing airliner in the Indian Ocean. Non-military flying drones for civilian use often rely on sunlight to recharge their batteries. But sea-faring drones, such as Wave Glider, can extract energy from the sun and the water. Together with solar cells on their decks, these vessels use an...

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