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"Around 1965 Haacke moved on to other flexible natural forces and started to build his “weather events” with air draughts and blower systems both indoors and outdoors. Blue Sail (1965) was one of his indoor installations, consisting of blue chiffon, nylon thread, weights, and an oscillating fan which kept the installation in perpetual motion, as if it were a living organism fluttering fragilely in the air, but kept alive only with the help of the fan."
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