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Ptolemy, Alexandria Observatory, 2nd Century

Claudius Ptolemy (AD c100-170), Greek-Egyptian astronomer, geographer and mathematician at his observatory in Alexandria, Egypt. Among the instruments seen here are Ptolemy's rulers (lower centre) and a copper disc (far right), which he used to demonstrate the law of reflection. At this observatory Ptolemy made the observations that supported Earth-centre models of solar and planetary motion. This view dominated astronomical thinking until the mid 16th century. Engraving from Vies des Savants Illustres (1877). This image has been colorized.
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Title:
Ptolemy, Alexandria Observatory, 2nd Century
Caption:
Claudius Ptolemy (AD c100-170), Greek-Egyptian astronomer, geographer and mathematician at his observatory in Alexandria, Egypt. Among the instruments seen here are Ptolemy's rulers (lower centre) and a copper disc (far right), which he used to demonstrate the law of reflection. At this observatory Ptolemy made the observations that supported Earth-centre models of solar and planetary motion. This view dominated astronomical thinking until the mid 16th century. Engraving from Vies des Savants Illustres (1877). This image has been colorized.
Credit:
Album / NYPL/SCIENCE SOURCE
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Image size:
4874 x 3657 px | 51.0 MB
Print size:
41.3 x 31.0 cm | 16.2 x 12.2 in (300 dpi)
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