drawing ink
Iran
11th Century
Source: Sezgin, F. (ed.), Science and Technology in Islam, vol. 2, 2001.
Recipe Details
Preparation Steps
The diagrams in the manuscript utilize black and red inks to delineate the geometric components and subdivisions of an astronomical instrument designed by Zainaddin 'Umar b. Sahlan as-Sawi (p. 167).
Original Recipe Text
The diagrams in the manuscript utilize black and red inks to delineate the geometric components and subdivisions of an astronomical instrument designed by Zainaddin 'Umar b. Sahlan as-Sawi (p. 167).
Evidence
"Figures from MS Istanbul, University Library, A.Y. 314."
Remarks
The manuscript figures provide a detailed technical illustration of a gear-based instrument intended to determine star altitudes correct to a minute. The text (Sifat ala yusal biha ila ma'rifat irtifat al-kawakib bi-daqa'iq) was recently made accessible via a facsimile edition (p. 167).
Scientific Analysis
Analytical Techniques
visual analysis
Certainty Level
Inferred
Instrumentally Verified
Not Verified
Metadata
Material Type
ink
Paper Typemanuscript
ColorBlack
RegionIran
Approx. Year1050
Source Information
AuthorSezgin, F.
CollectionMS Istanbul, University Library, A.Y. 314
Language
N/A
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