I found this paper interesting in light of yesterday's discussion on the future of airships: https://news.ycombinator.com/item?id=32934121 https://news.ycombina

I found this paper interesting in light of yesterday's discussion on the future of airships: https://news.ycombinator.com/item?id=32934121 https://news.ycombinator.com/item?id=32934121