Michael Whiting's Orreries on CD

Michael Whiting's Orreries are acknowledged to be the definitive Meccano examples of these interesting mathematical astronomic demonstrations.  Models of a large range of sizes and complexity represent our solar system, individual planets and moons and other large orbiting objects.  Even two extra-solar planetary systems are included.

Ten ModelPlans on one CD, with photographs, building instructions, background information, mathematical tables and diagrams scanned in high-resolution .PDF format which can be read on-screen or printed.