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Sullam al-sama'

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Title: Sullam al-sama'  
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Sullam al-sama'

Sullam al-sama'
A page from the astronomical treatise Sullam al-sama'
Author Jamshid Kashani
Original title سُلَم السَماء
Country Iran
Language Arabic[1]
Subject Astronomy
Publication date
1407

Sullam al-sama' also known as Resaleh-ye Kamaliyyeh (Arabic*:[1] سُلَم السماء, Transliterated as Sǒllam os-Samā') meaning "The Ladder of the Sky" or "The Stairway of Heaven"[2] is an astronomical treatise [3] written by the Persian mathematician and astronomer Jamshid Kashani in 1407 about the determination of distance and size of the heavenly bodies such as the Earth, the Moon and the Sun.

The text

Kashani finished the writing of the book on 1 March 1407. He mentioned at the preface of another book of his, Meftah al-Hesab (lit. "The Key of Arithmetic") that: "I studied all books on astronomy that the scientists had written before me and i realized that they had many difficulties and disagreements about the determination of the size or distance of the astronomical objects like Mercury or Venus to the Sun. So I decided to write this book and I named it Sullam al-sama' to be a guide for the wise."[4]

Series adaptation

The book shares its title with a TV series about Kashani produced in Iran in 2008.

Footnotes

  1. ^ a b Many of the medieval Persian books on Mathematics or Astronomy were written in Arabic Script because of the popularity and majority of use of Arabic language among Iranian scientists those days.
  2. ^ http://www.iranchamber.com/personalities/jkashani/jamshid_kashani.php
  3. ^ Britannica online , Kashi entry
  4. ^ Kashi Entry in Dehkhoda online Dictionary
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