Experimentally interactive, Blubber Bots are sci-fi-esque helium-filled robots that seek out interaction from light, humans, other Blubber Bots, and cell phone signals. Humming through open air, the bots operate in a networked habitat. The balloon-like creatures also feature an interactive voice recognition system as a way of increasing human/bot connectivity. The video is a little on the long side, but definitely has intriguing interactions.
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What a great find - how did you find these?