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Subject: Do You Know That Author: Mohd Som [ Next Thread | Previous Thread | Next Message | Previous Message ] Date Posted: 12:23:37 09/09/02 Mon Author Host/IP: jrc-cache5.jaring.my/161.142.112.5 Muslim mathematicians devised and developed algebra Al-Khawarazmi used Arabic numerals which came to the west through his work-9th century. Al-Razi described amd treated smallbox-10th century Ibn Sina diagnosed and treated meningities-11th century Ibn al-Haytham discovered the camera obscura- 11th century Al-Birini described the Ganges Valley as a sedimentary basin-11th century Muslims built the first observartory as a scientific institution-13th century Qutb al-Din al-Shirazi explained the cause of the rainbow- 13th century Ibn al-Nafis described the minor ciculation of the blood- 14th century. Al-Kashani invented a computer machine- 15th century [ Next Thread | Previous Thread | Next Message | Previous Message ]