Ned Kahn, environmental artist/sculptor builds museum exhibits for San Francisco’s Exploratorium, making invisible aspects of nature visible: building facades that move in waves in response to wind; indoor tornado/fog/steam/fire vortices. This end-of-pier fountain used air pressure surges from passing waves to blow a seawater spray out of the spiral; water cascaded back through a slot in the pier. Height 7’, completed 1993, destroyed by damage 1996. (Water damage? Vandalism? Didn’t say.) photo source: file from wave_spout Video via nedkahn.