Epact Scientific Instruments of Medieval and Renaissance Europe

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Protractor
Unsigned
16th century; Italian
Brass; 80 mm in diameter

This protractor consists of a graduated circle and a pointer. The central space is divided into four sections, one of which contains a small quadrant. This part of the instrument can rotate within the circle.

The instrument was used to calculate relationships between different angles, by using the position of the pointer on the graduated circle.

Istituto e Museo di Storia della Scienza, Firenze
Inventory no. 2526

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