Orrery (mechanical planetarium) demonstrating the transit of Venus, about 1760, made by Benjamin Cole, London
The model is a mechanical planetarium, or orrery, and was built to demonstrate the principles of the transit of Venus.
The model shows the relationships between Earth, Venus and the sun for the period of the transit. Turning the handle causes Venus to pass across the face of the sun, while Earth rotates about its axis.
Source
The Royal Society
Details
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Type:
