Celestial globe

When viewing the starry sky (firmament) celestial charts of all kinds are normally used, apart from complicated optical systems such as planetariums. Celestial charts with a flat shape or spherical shape (as celestial globe) are known. The invention relates to a two-sphere system, terrestrial sphere...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	GRAH, KLAUS, 6000 FRANKFURT, DE
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE CRYPTOGRAPHY DIAGRAMS DISPLAY EDUCATION EDUCATIONAL OR DEMONSTRATION APPLIANCES GLOBES PHYSICS PLANETARIA SEALS
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