|
Ömer Hayyam
Ghiyāth al-Dīn Abū al-Fatḥ ʿUmar ibn Ibrāhīm Nīshābūrī (18 May 1048 – 4 December 1131) (Persian: غیاث الدین ابوالفتح عمر بن ابراهیم خیام نیشابورﻯ), commonly known as Omar Khayyam (), was a Persian poet and polymath, known for his contributions to mathematics, astronomy, philosophy, and Persian literature. He was born in Nishapur, Iran and lived during the Seljuk era, around the time of the First Crusade. As a mathematician, he is most notable for his work on the classification and solution of cubic equations, where he provided a geometric formulation based on the intersection of conics. He also contributed to a deeper understanding of Euclid's parallel axiom. As an astronomer, he calculated the duration of the solar year with remarkable precision and accuracy, and designed the Jalali calendar, a solar calendar with a very precise 33-year intercalation cycle which provided the basis for the Persian calendar that is still ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abolhassan Sadighi
Abolhassan Sadighi () (5 October 1894 – 11 December 1995) was an Iranian sculptor and painter and was known as Ostad Sadighi (English: Master Sadighi). He was a student and disciple of Kamal-ol-molk. The statue of Ferdowsi in the Ferdowsi square, the statue of Omar Khayyam, Khayyam in Laleh Park of Tehran, the statue of Nader Shah in Tomb of Nader Shah, his mausoleum in Mashhad, and the portrait of Avicenna, Abu-Ali Sina are examples of his works. Biography Abolhassan Sadighi was born in the Oudlajan neighbourhood of Tehran on 5 October 1894.Sadighi, The Oriental Michelangelo His father, Mirza Bagher Khan Sadigoddoleh, was from the residents of Nur, Iran, Nur, Mazandaran province, Mazandaran; his mother, Malakeh Khanum, was a Qajar dynasty, Qajar princess, known as "Shajan". His family had moved to Tehran years before the birth of Sadighi and settled in Oudlajan, which was, at the time, one of the high-class neighbourhoods of the capital. When he was seven, Sadighi went to Agda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
