1001 inventions awesome facts about muslim civili Astronomy and Optics Astronomical Instruments: Innovations like the astrolabe and quadrant improved navigation and timekeeping. Optics: Ibn al-Haytham (Alhazen) made groundbreaking discoveries on light and vision, influencing optics for centuries. Calendars and Timekeeping: Accurate lun P Pearlie Bartell May 19, 2026
