Commissioned by the San Francisco Arts Commission, SpiroGyrate is an interactive children’s play area in Terminal 3 of San Francisco International Airport.
Twelve 56″ (142 cm) spirals mesh and seemingly propel one another like so many gears, in an installation that begins on the floor and moves up the wall. Each of these spirals is laser-cut acrylic and each of them is motorized to move clockwise and counter-clockwise in a slow and hypnotic fashion. The piece is interactive, beginning with the viewer’s ability to walk and stand on the spirals, which are under heavy glass plates. Motion sensors respond to people walking over the glass circles and activate color changes in the back-lit spirals.