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Nestled up high in the ceiling, Overhead Fans allows guests to stand beneath one of twelve spots on the floor below where photoelectric occupancy sensors point downward at reflective targets. When a user breaks the photoelectric sensor beam, the corresponding fan quickly turns on to propel and levitate a balloon.
Multiple visitors can work together to complete challenges such as propelling the balloon in a circle around the exhibit by turning on the fans in succession using their bodies. Each fan motor has an LED ring that illuminates to provide visual feedback to users when the fans turn on.
Discovery and surprise, group collaboration
Science North, Sudbury, Ontario, Canada
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