Astrolabe Catalogue

Shadow square

Type: Shadow square
Style: Tangent/Cotangent
Geometry: Box
Unit of measurement: Fingers
(Numbering) starts at: 0
(Numbering) ends at: 12
Numbered: Every 1
Repeats: 1 times
Divided every: 1 (Fingers)
then every: 0.2 (Fingers)

Scale located on: Tympan, Womb or Back .

Location(s) detail:

d: Right hand vertical face of the shadow square (in LR) (d)


Type: Scale label
Content: ظل اصابع معكوس
Translation: Inverted shadow [scale] of fingers
Language: Persian
Script: Nashki
MHS Home | Contact Us | ©2006 Museum of the History of Science