Porter, Dot2023-05-232022-10-102022-10-102022-10-10https://repository.upenn.edu/handle/20.500.14332/46792youtubeAstronomical instrumentsAstrolabes -- Early works to 1800AstrolabesAstronomical instruments -- Early works to 1800Astronomy Arab -- Early works to 1800Astronomy ArabManuscripts ArabicManuscripts 16th centuryManuscripts RenaissanceCodices (bound manuscripts)DiagramsTreatisesEarly worksArabic StudiesAstrophysics and AstronomyHistory of Science, Technology, and MedicineRenaissance StudiesMedia