Q: 3
ABU ISHAQ ALKINDI
(800-873)

a) BIOGRAPHY
 Known as “Philosopher of the Arabs”
 Known as Alkindi in the West
 Was born in Basrah


b) WORKING FIELD
 Mathematics
 Geometry
 Chemistry
 Astronomy
 Music
 Philosophy
 Physics


c) CONTRIBUTIONS
 In the field of Mathematics, he laid down the foundation of a large part of modern arithmetic and wrote four books on the number system.
 In the field of geometry, he contributed to spherical geometry.
 In the field of chemistry, he opposed the idea that base metal can be converted to precious metals.
 Composed astronomical table
 In the field of Music, he discovered that when a sound is produced, it generates waves in the air, which strike the eardrum.


d) HIS FAMOUS BOOKS
 Al Mosiqa
 Mad o Jazr
 Risalah dar Tanjim
 Ikhtiyar al Ayyam
 De Aspectibus
 De Medicinarum Compsitarum Gradibus