Astrolabe
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A Persian astrolabe. The astrolabe was first instrument that made possible navigation at sea by means of accurate sightings of the stars. Photo by Norman Crowe.
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Copyright 2012,
Norman Crowe.
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Cite/attribute Resource.
Crowe, N. (2009, January 19). Astrolabe. Retrieved February 12, 2012, from Notre Dame OpenCourseWare Web site: http://ocw.nd.edu/architecture/nature-and-the-built-environment/lecture-6/astrolabe.
