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This user has made thousands of contributions to Wikipedia.


Contributions
Sokolov-Ternov effectHamilton's principal functionHamilton's characteristic functionExperimental observation of Hawking radiationParticle number operator* • Self-organization in biology* • Aleksandr ChudakovAlexey AndreevichA. P. BalachandranIgor TernovMark TroddenStanislav MikheyevAlexei Smirnov* • Shamil AsgarovSeifallah Randjbar-DaemiHabil AliyevAhmad BakikhanovAşık KhanlarSuleyman ValiyevHeino FinkelmannTom LubenskyLubna al-HusseinSheylanli tribeSheylanliBoyatAshaghy AylisAgbashInternational Liquid Crystal SocietyBritish Liquid Crystal SocietyInternational Centre for Theoretical Physics* • ANS Group of CompaniesANS TVANS ChMKhudafarin BridgesAzerbaijan TimeYemen TürküsüJujalarimFöppl–von Kármán equations

* Didn't create but significantly contributed

Picture of the day The Book of Fixed Stars

The Book of Fixed Stars (Arabic: كتاب صور الكواكب kitāb suwar al-kawākib, literally The Book of the Shapes of Stars) is an astronomical text written by Abd al-Rahman al-Sufi (Azophi) around 964. Following the Graeco-Arabic translation movement in the 9th century AD, the book was written in Arabic, the common language for scholars across the vast Islamic territories, although the author himself was Persian. It was an attempt to create a synthesis of the comprehensive star catalogue in Ptolemy's Almagest (books VII and VIII) with the indigenous Arabic astronomical traditions on the constellations (notably the Arabic constellation system of the Anwā'). The original manuscript no longer survives as an autograph, however, the Book of Stars has survived in later-made copies. This image from the book shows the constellation of Orion, in mirror image as if on a celestial globe, and is from a copy in the Bodleian Library dated to the 12th century AD.

Ilustration credit: Abd al-Rahman al-Sufi


Today's featured article

Ichiko Aoba
Ichiko Aoba

Windswept Adan is the seventh studio album by Japanese singer-songwriter Ichiko Aoba (pictured), released on 2 December 2020 by her label, Hermine. The concept album follows the story of a young girl who is sent away by her family to the fictional island of Adan. Aoba and composer Taro Umebayashi wrote, composed, arranged, and produced the music for the album, which was preceded by one single, "Porcelain". Windswept Adan is a chamber folk and psychedelic folk album with elements of jazz, classical, and ambient music. Marking a departure from Aoba's earlier minimalist instrumentation, it includes a celesta, wind chimes, string arrangements, and vocal performances. The album received widespread critical acclaim for its arrangements, instrumentation, and worldbuilding. Upon its release, the album debuted at number 82 on the Billboard Japan Hot Albums chart and number 88 on the Oricon Albums Chart. Aoba supported the album with her first international tour between August and October 2022. (Full article...)