Intercalary Study Lamp is a hybrid lamp and orrey. Watching the sun move throughout the day in the Willis Reading Room is a continual reminder of our rotation around the sun. Galileo stood trial for heresy because his observations and his writings promoted heliocentrism. Observation and study are critical to our understanding of the world. The Reading Room study lamps and Galileo’s moon drawings from Sidereus Nuncius, 1610 (Starry Messenger) were key sources for this work.

1. Orrey, Wikipedia.