Sijzi
Sign in to savethumb|190px|Model of the Solar System and Earth movement ("planetarium") according to al-Sijzi '''Abu Sa'id Ahmed ibn Mohammed ibn Abd al-Jalil al-Sijzi (c. 945 - c. 1020, also known as al-Sinjari and al-Sijazi; ; Al-Sijzi''' is short for "Al-Sijistani") was an Iranian Muslim astronomer, mathematician, and astrologer. He is notable for his correspondence with al-Biruni and for proposing that the Earth rotates around its axis in the 10th century.
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- After Tomorrow the Days Disappear
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Key facts
- Philosopher.name
- Abu Sa'id al-Sijzi
- Philosopher.caption
- A page from Al Sijzi's geometrical treatise
- Philosopher.image
- AlSijziGeometric.jpg
- Philosopher.birth_date
- 945 CE
- Philosopher.birth_place
- Sijistan, Saffarid dynasty (modern-day Sistan)
- Philosopher.death_date
- 1020 CE
- Philosopher.main_interests
- Mathematics, Astronomy, Astrology
via Wikipedia infobox
Article
6 sectionsContents
- Mathematics
- Earth's rotation
- References
- Sources
- Further reading
- External links
thumb|190px|Model of the Solar System and Earth movement ("planetarium") according to al-Sijzi '''Abu Sa'id Ahmed ibn Mohammed ibn Abd al-Jalil al-Sijzi (c. 945 - c. 1020, also known as al-Sinjari and al-Sijazi; ; Al-Sijzi''' is short for "Al-Sijistani") was an Iranian Muslim astronomer, mathematician, and astrologer. He is notable for his correspondence with al-Biruni and for proposing that the Earth rotates around its axis in the 10th century.
He dedicated work to 'Adud al-Daula, who was probably his patron, and to the prince of Balkh. He also worked in Shiraz making astronomical observations from 969 to 970.
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1020 deaths10th-century inventors10th-century Iranian astronomers10th-century Iranian mathematicians11th-century Iranian astronomers11th-century Iranian mathematicians940s birthsAstronomers of the medieval Islamic worldMedieval Iranian astrologersScholars under the Buyid dynastyYear of birth uncertain