No Propeller? No Problem. This Blimp Flies on Buoyancy Alone Posted by pross356 on Tuesday June 30, 2020 @11:36AM from the spectrum.ieee.org dept. https://spectrum.ieee.org/aerospace/aviation/no-propeller-no-problem-this-blimp-flies-on-buoyancy-alone ( no comments | 4 points | on HN )
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