Festo's SmartInversion flying contraption turns itself inside out for propulsion

Festo's SmartInversion flying contraption turns itself inside out for propulsion:

Festo, a German automation technology company that brought us, among other things, the smartbird robotic seagull and bionic flying penguins, has built a flying object unlike any we have seen. Despite the impressive biomimicry track record, this time its engineers decided to look for inspiration in the inanimate world of geometry. Based on a geometrical band first created by Swiss artist and inventor Paul Schatz, the SmartInversion is filled with helium and propels itself through the air by constantly turning itself inside out. By investigating this pulsating, rhythmical movement, called inversion, the company hopes to identify possible uses for it in technology...
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