with Astro-biologist Woody Sullivan
Steel, vinyl, glass, 33x28x28 in
The Terrace Observatory, Exploratorium: Museum of Science, Art and Perception, San Francisco, CA.
Conceived for visitor interaction with the architectural oculus (a 28” aperture) in the ceiling. Visitors align the rolling table with the spot of sunlight and visible landmarks on the horizon. Time and date are indicated by the shadow cast on the interior of the large hemisphere.