Astronomers in the 16th through 19th centuries used to wear rings that unfolded to become instruments used for calculations. The rings, which looked like normal finger rings, were actually armillary ...
St. John’s College in Santa Fe, New Mexico has unveiled the only working Tycho Brahe armillary sphere on Earth. The complex device is used to target and measure distances in space, and although it was ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. On photo mount label: P. Manship.
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