Caliper Compasses

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Revision as of 13:59, 26 October 2009

Nome in uso attualmente per indicare il compasso a punte ricurve.

Contents 1 Historic Period 2 Description 3 Bibliographical Resources 4 Existing Instruments 5 Images

Historic Period

XV secolo

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Description

Compasso per la misura dei diametri di colonne, palle d’artiglieria e calibri. Poteva avere le gambe ricurve verso l’interno, per prendere i "diametri di fora" (colonne e palle d’artiglieria), oppure a gambe dritte con punte ricurve verso l’esterno, per prendere i "diametri di dentro" (bocche da fuoco). E' noto anche come compasso sferico o compasso di calibro.

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Bibliographical Resources

Pomodoro, Giovanni. Geometria prattica tratta dagl'Elementi d'Euclide ed altri Auttori da Giovanni Pomo doro Venetiano Mathematico eccellentissimo descritta et dichiarata da Giovanni Scala Mathematico, Stefano de' Paulini, Roma, 1599.

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Existing Instruments

Florence, Museo Galileo. Institute and Museum of the History of Science, Inv. 3693.
Florence, Museo Galileo. Institute and Museum of the History of Science, Inv. 3706.

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Images

File.jpg Giovanni Pomodoro, La geometria pratica, Roma, 1599, tav.I, particolare.	Jacob Leupold. Theatrum machinarum, oder Schau-Platz des grundes mecanischer Wissenschaften / deutlich vor Augen gestellet von Jacob Leupold, Leipzig, 1724-1739, tav. XXIV-XXV.	Nicolas Bion. Traité de la construction et des principaux usages des instruments de mathematique, Paris, 1725, tav. 8.
File.jpg Nicolas Bion. Traité de la construction et des principaux usages des instruments de mathematique, Paris, 1725, tav. 18.

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Author of the entry: Filippo Camerota