3 ms·
I remember seeing this on the cover of Popular Science in 80s (maybe early 90s). A ship with a large cylinder used for propulsion from wind energy. edit: I fou
by dghughes 6y ago
I remember seeing this on the cover of Popular Science in 80s (maybe early 90s). A ship with a large cylinder used for propulsion from wind energy.
edit: I found the issue
https://www.google.ca/search?sa=X&sxsrf=ALeKk01n7hvalLGEwW3eeY3YxlQXY64mxw:1609101075935&source=univ&tbm=isch&q=%22popular+science%22+magazine+spinning+sail&hl=en&ved=2ahUKEwiIkKfQgO_tAhWpGVkFHTw9AIIQ7Al6BAgHEAo&biw=1920&bih=1086 https://www.google.ca/search?sa=X&sxsrf=ALeKk01n7hvalLGEwW3e...