Multi-function globe with its related planets

Details Multi-function globe with its related planets Multi-function globe with its related planets

1986-10-14

1988-05-31

Murtagh, John E.

Education and demonstration

Science

Astronomy

434292, G09B 2702

Patent

active

047477806

ABSTRACT:
It is a multi-globe system including the sun, the earth and the moon, and it mainly comprises a supporting frame, a power operation structure, an earth orbit base, a moon transmission structure, a sun structure, an earth structure, a calendar device, and a power supply device; it is substantially a mechanical transmission theory system so as to provide an artificial globe system to illustrate the revolution relation among the earth, the sun and the moon for teaching purpose, and to include a perpetual calendar system.

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