Tag: David Rittenhouse

  • The Rittenhouse Orrery

    Dear Mr. Mudd: Q: What is an orrery, and how did Princeton University come to own one? How was it damaged in the Battle of Princeton? A: An orrery is a mechanical model of the solar system. Orreries were regarded as essential teaching equipment for 18th-century lectures on “natural philosophy” (the physical sciences). Although invented […]