Tag Archives: astronomical instruments

A guest post by HSCI 3013.002 students Danya Majeed, James Reeves and Crystal Neill. History: Imagine you are an astronomer in medieval times.  You have studied Aristotelian physics.  You wholeheartedly agree with Ptolemy’s description of the universe and have thoroughly digested the precepts laid out in his book, Almagest, detailing the position of the earthContinue reading “Armillary Sphere”