Help on mark on Italian sword ca. 1580

Ibrahiim al Balooshi · 26th January 2020, 04:30 PM

From the superb additions and at #70 on Taqi ad-Din Muhammad ibn Ma'ruf by Andrea Ferraro89

see Taqi al-Din Muhammad ibn Ma'ruf on the web...

Taqi ad-Din Muhammad ibn Ma'ruf

Taqi al-Din Muhammad ibn Ma'ruf ash-Shami al-Asadi was an Ottoman polymath active in Cairo and Istanbul. He was the author of more than ninety books on a wide variety of subjects, including astronomy, clocks, engineering, mathematics, mechanics, optics and natural philosophy. In 1574 the Ottoman Sultan Murad III invited Taqī ad-Dīn to build the Constantinople observatory. Using his exceptional knowledge in the mechanical arts, Taqī ad-Dīn constructed instruments like huge armillary and mechanical clocks that he used in his observations of the Great Comet of 1577. He also used European celestial and terrestrial globes that were delivered to Istanbul in gift-exchange. The major work that resulted from his work in the observatory is titled "The tree of ultimate knowledge in the Kingdom of the Revolving Spheres: The astronomical tables of the King of Kings". The work was prepared according to the results of the observations carried out in Egypt and Istanbul in order to correct and complete Ulugh Beg’s Zij as-Sultani. The first 40 pages of the work deal with calculations, followed by discussions of astronomical clocks, heavenly circles, and information about three eclipses which he observed at Cairo and Istanbul. For corroborating data of other observations of eclipses in other locales like Daud ar-Riyyadi, David Ben-Shushan of Salonika.

26th January 2020, 04:30 PM	#11
Ibrahiim al Balooshi Member Join Date: Jul 2006 Location: Buraimi Oman, on the border with the UAE Posts: 4,408	From the superb additions and at #70 on Taqi ad-Din Muhammad ibn Ma'ruf by Andrea Ferraro89 see Taqi al-Din Muhammad ibn Ma'ruf on the web... Taqi ad-Din Muhammad ibn Ma'ruf Taqi al-Din Muhammad ibn Ma'ruf ash-Shami al-Asadi was an Ottoman polymath active in Cairo and Istanbul. He was the author of more than ninety books on a wide variety of subjects, including astronomy, clocks, engineering, mathematics, mechanics, optics and natural philosophy. In 1574 the Ottoman Sultan Murad III invited Taqī ad-Dīn to build the Constantinople observatory. Using his exceptional knowledge in the mechanical arts, Taqī ad-Dīn constructed instruments like huge armillary and mechanical clocks that he used in his observations of the Great Comet of 1577. He also used European celestial and terrestrial globes that were delivered to Istanbul in gift-exchange. The major work that resulted from his work in the observatory is titled "The tree of ultimate knowledge in the Kingdom of the Revolving Spheres: The astronomical tables of the King of Kings". The work was prepared according to the results of the observations carried out in Egypt and Istanbul in order to correct and complete Ulugh Beg’s Zij as-Sultani. The first 40 pages of the work deal with calculations, followed by discussions of astronomical clocks, heavenly circles, and information about three eclipses which he observed at Cairo and Istanbul. For corroborating data of other observations of eclipses in other locales like Daud ar-Riyyadi, David Ben-Shushan of Salonika.