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- Q2991000 subject Q16793484.
- Q2991000 subject Q16873830.
- Q2991000 subject Q6577724.
- Q2991000 subject Q6675596.
- Q2991000 subject Q7000249.
- Q2991000 subject Q7000276.
- Q2991000 subject Q7013070.
- Q2991000 subject Q7067668.
- Q2991000 subject Q7212725.
- Q2991000 subject Q7217366.
- Q2991000 subject Q7832227.
- Q2991000 abstract "Template:ForAbu Jafar Muhammad ibn Hasan Khazini (900–971) was a Persian Muslim astronomer and mathematician from Khorasan. He worked on both astronomy and number theory.Khazini was one of the scientists brought to the court in Ray, Iran by the ruler of the Buyid dynasty, Adhad ad-Dowleh, who ruled from 949 to 983 AD. In 959/960 Khazini was required by the Vizier of Ray, who was appointed by ad-Dowleh, to measure the obliquity of the ecliptic.One of al-Khazin's works Zij al-Safa'ih ("Tables of the disks of the astrolabe") was described by his successors as the best work in the field and they make many references to it. The work describes some astronomical instruments, in particular an astrolabe fitted with plates inscribed with tables and a commentary on the use of these. A copy of this instrument was made but vanished in Germany at the time of World War II. A photograph of this copy was taken and examined in D.A. King's New light on the Zij al-Safa'ih of Abu Ja'far al-Khazin, Centaurus 23 (2) (1979/80), 105-117.Khazeni also wrote a commentary on Ptolemy's Almagest in which he gives nineteen propositions relating to statements by Ptolemy. He also proposed a different solar model from that of Ptolemy.".
- Q2991000 wikiPageExternalLink 1G2-2830902292.html.
- Q2991000 wikiPageExternalLink Khazin_BEA.htm.
- Q2991000 wikiPageExternalLink Khazin_BEA.pdf.
- Q2991000 wikiPageExternalLink sici?sici=0021-1753%28199803%2989%3A1%3C112%3AFR%3E2.0.CO%3B2-C.
- Q2991000 wikiPageExternalLink sici?sici=0041-977X%281998%2961%3A2%3C406%3ALMIDIA%3E2.0.CO%3B2-K.
- Q2991000 wikiPageWikiLink Q12479.
- Q2991000 wikiPageWikiLink Q1255366.
- Q2991000 wikiPageWikiLink Q1267533.
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- Q2991000 wikiPageWikiLink Q16793484.
- Q2991000 wikiPageWikiLink Q16873830.
- Q2991000 wikiPageWikiLink Q183.
- Q2991000 wikiPageWikiLink Q2352322.
- Q2991000 wikiPageWikiLink Q2658115.
- Q2991000 wikiPageWikiLink Q273874.
- Q2991000 wikiPageWikiLink Q333.
- Q2991000 wikiPageWikiLink Q34943.
- Q2991000 wikiPageWikiLink Q362.
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- Q2991000 wikiPageWikiLink Q484206.
- Q2991000 wikiPageWikiLink Q506243.
- Q2991000 wikiPageWikiLink Q636188.
- Q2991000 wikiPageWikiLink Q656742.
- Q2991000 wikiPageWikiLink Q6577724.
- Q2991000 wikiPageWikiLink Q6675596.
- Q2991000 wikiPageWikiLink Q7000249.
- Q2991000 wikiPageWikiLink Q7000276.
- Q2991000 wikiPageWikiLink Q7013070.
- Q2991000 wikiPageWikiLink Q7067668.
- Q2991000 wikiPageWikiLink Q7212725.
- Q2991000 wikiPageWikiLink Q7217366.
- Q2991000 wikiPageWikiLink Q7832227.
- Q2991000 wikiPageWikiLink Q79852.
- Q2991000 type Thing.
- Q2991000 comment "Template:ForAbu Jafar Muhammad ibn Hasan Khazini (900–971) was a Persian Muslim astronomer and mathematician from Khorasan. He worked on both astronomy and number theory.Khazini was one of the scientists brought to the court in Ray, Iran by the ruler of the Buyid dynasty, Adhad ad-Dowleh, who ruled from 949 to 983 AD.".
- Q2991000 label "Abū Ja'far al-Khāzin".