In A.D. 824 there were held philosophical disputations in his presence. Al-Farghani was the author of an introduction to astronomy, which was printed by Golius at Amsterdam in 1669, with notes.
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Arabian Lefends Al-Farghani
Mention might be made of about forty mathematicians and astronomers
who wrote books on these subjects. The best of them, such as
Al-Farghani (Alfraganius) and others, lived at the court of Mamun, who
built an astronomical observatory in Baghdad and another near
Damascus, on Mount Kasiun. He caused also two degrees of the meridian
to be measured on the plain of Sinjar, so as to ascertain the
circumference of the earth with more precision.
In A.D. 824 there were held philosophical disputations in his presence. Al-Farghani was the author of an introduction to astronomy, which was printed by Golius at Amsterdam in 1669, with notes. |
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