PIRA Classification: 1D40.35
Description: Two spheres, one representing the moon, the other the Earth, are connected by a thin rod. The rod has holes drilled through it at various points. A hole is also drilled through a portion of the Earth (the center of mass of the system). The system can be spun around using a handle.
Special Instructions: None
Condition: Good
Setup time: 1 minute
Safety Issues: None