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Galileo Galilei, Le operazioni del compasso geometrico et militare
Galileo Galilei, Le operazioni del compasso geometrico et militare

Padua 1606
2, pp. 34 (2 n.n. + 32), ill.; 32,2x22,8 cm
Florence, Istituto e Museo di Storia della Scienza, MED 2023

Conceived as a "mathematical fun" for the education of the Prince Cosimo de’ Medici, this booklet describes the operations of the first instrument for multifunctional calculation of Modern Age. The page on display illustrates its use for measuring the height of a mountain.