A helium-filled autonomous drone
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Autonomous sphere drone delivers water and other news

BBC Click's Stephen Beckett looks at some of the best of the week's technology news, including Facebook rolling out artificial intelligence-powered chatbots on its Messenger platform and the "FreeMotionHandling" sphere - a helium-filled autonomous drone - which can deliver bottles of water and other objects.

More at BBC.com/Click and @BBCClick.

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