Celestial globe

Details Celestial globe Celestial globe

1984-09-20

1985-07-02

Grieb, William H.

Education and demonstration

Science

Astronomy

G09B 2706

Patent

active

045265496

ABSTRACT:
A transparent globe marked with various celestial objects is partially filled with water. A disk floats on the water to provide a reference position with respect to the celestial objects. The relationship between the reference position and the celestial objects can be studied by rotating the globe about its axis.

REFERENCES:
patent: 336280 (1886-02-01), Bailey
patent: 2399365 (1946-04-01), Link
patent: 2515401 (1950-07-01), Dupler

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