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Human-Powered Airship Able to Stay in the Air for 2 Weeks

This pretty weird but still very impressive machine was designed by Christopher Ottersbach. He name it Aeolus Airship (Aeolus is the Greek wind god). The design of the blimp is meant to be aerodynamic so it would be able to stay aloft for 2 weeks. What is really interesting is that this device works of pedal-powered by a team of 2 to 4 people.
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