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There's plenty of UAVs out there capable of dropping things, but comparatively fewer that are able to pick things up. Some researchers at Yale University doing their part to change that, however, and have recently shown off their so-called Yale Aerial Manipulator; a UAV with a robotic hand. While that may not exactly sound like much, the four-fingered hand is able to "autonomously"... grab objects that weigh up to two kilograms while the UAV is in flight, and the helicopter itself is able to reach a top speed of 120 kilometers per hour. That, the researchers say, could let the UAV pick up bombs or packages in difficult to reach areas, or even simply be used to make deliveries in urban areas -- like that can of Guinness you've been craving, for instance. Head on past the break to check it out in action.