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Obstacle avoidance: The challenge for drone package delivery https://t.co/6SdCVYvpwE via @Moral_time pic.twitter.com/waIkayDcr4

— Monica Dhungel (@DhungelMonica) December 24, 2016

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from Twitter https://twitter.com/DhungelMonica

December 24, 2016 at 04:21AM
via Moraltime