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English: Su Song's Water Clock (?).

This picture is a scaled model of Su Song's water-powered clock tower.
The original clock tower was 35 feet tall. It was a 3 story tower with an armillary sphere on the roof, and a celestial globe on the third floor.

This picture was taken in July 2004 from an exhibition at Chabot Space & Science Centre in Oakland, California. The quality of the picture is not ideal because flash photography was not allowed.
Date 12 July 2004 (original upload date)
Source Originally from en.wikipedia; description page is/was here.
Author Original uploader was Kowloonese at en.wikipedia
( Reusing this file)

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