Surveying Compasses

From Inventions

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	|strumentiesistenti=		|strumentiesistenti=
-	[http://brunelleschi.imss.fi.it/museum/esim.asp?c=402030 Florence, Museo Galileo. Institute and Museum of the History of Science, Inv. 645.]	+	- Museo Galileo, Institute and Museum of the History of Science, Florence <br>
		+	[http://catalogue.museogalileo.it/object/TriangulationCompass.html Florence, Museo Galileo. Istituto e Museo di Storia della Scienza, Inv. 645.]<br>
		+	[http://catalogue.museogalileo.it/object/SurveyingCompass_n06.html Florence, Museo Galileo. Istituto e Museo di Storia della Scienza, Inv. 1280.]<br>
		+	[http://catalogue.museogalileo.it/object/SurveyingCompass_n05.html Florence, Museo Galileo. Istituto e Museo di Storia della Scienza, Inv. 1471.]<br>
		+	[http://catalogue.museogalileo.it/object/SurveyingCompass_n04.html Florence, Museo Galileo. Istituto e Museo di Storia della Scienza, Inv. 3687.]<br>
		+	[http://catalogue.museogalileo.it/object/SurveyingCompass_n07.html Florence, Museo Galileo. Istituto e Museo di Storia della Scienza, Inv. 2527.]<br>
	|link=		|link=
	|immagini=		|immagini=
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		+	<gallery widths=230 heights=368 perrow=3>
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		+	Image: 56700.jpg | Giacomo Contarini. ''Figure d'Istromenti Matematici'', Oxford, c. 1590, c25.<br />
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		+	Image: 56701.jpg | Giacomo Contarini. ''Figure d'Istromenti Matematici'', Oxford, c. 1590, c39.<br />
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		+	</gallery>
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	|autore_scheda= Filippo Camerota		|autore_scheda= Filippo Camerota

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Current revision as of 08:21, 10 September 2010

Current name for a surveying instrument widely used in Renaissance times.

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

Historic Period

16th-17th C.

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Description

Compass used for surveying, generally consisting of two flat graduated legs, a magnetic compass in the hinged joint and sighting devices. In its simplest form, this type of compass is well represented by the so-called florentine archimeter. In a version described by Giacomo Contarini, which may have been invented by Fabrizio Mordente, the instrument has two graduated legs with a magnetic compass in the joint, a graduated arm also pivoted at the joint, two small graduated arms connected to cursors sliding along the legs, and a 180° graduated arc.

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Bibliographical Resources

Contarini, Giacomo. Figure d'Istromenti Matematici e loro uso, ms, ca. 1590, Oxford, Bodleian Library, Ms. Canon. Ital. 145.

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Existing Instruments

- Museo Galileo, Institute and Museum of the History of Science, Florence
Florence, Museo Galileo. Istituto e Museo di Storia della Scienza, Inv. 645.
Florence, Museo Galileo. Istituto e Museo di Storia della Scienza, Inv. 1280.
Florence, Museo Galileo. Istituto e Museo di Storia della Scienza, Inv. 1471.
Florence, Museo Galileo. Istituto e Museo di Storia della Scienza, Inv. 3687.
Florence, Museo Galileo. Istituto e Museo di Storia della Scienza, Inv. 2527.

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Images

Giacomo Contarini. Figure d'Istromenti Matematici, Oxford, c. 1590, c25.

Giacomo Contarini. Figure d'Istromenti Matematici, Oxford, c. 1590, c39.

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Author of the entry: Filippo Camerota