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Astros, the Camel

1.  The astrolabe was used to chart the precise time of sunrises and sunsets, and to determine the period for fasting during the month of Ramadan, Arab astronomers of the Middle Ages compiles astronomical charts and tables in observatories such as those at Palmyra and Maragha.

2.  They were able to determine the length of a degree, to establish longitude and latitude, and to investigate the relative speeds of sound and light. Al-Biruni, considered one of the greatest scientists of all time, discussed the possibility of the earth’s rotation on its own axis – a theory proven by Galileo six centuries later.

3.  Arab astronomers such as al-Fezari, al-Farghani, and al-Zarqali added to the works of Ptolemy and the classic pioneers in the development of the magnetic compass and the charting of the zodiac. Distinguished astronomers from all over the world gathered to work at Maragha in the thirteenth century.