Cosmolabe

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{{Template invention
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|nome= Nome coniato dall'inventore (in francese, ''cosmolabe'') come variante di [[astrolabio]] (dal greco ''kosmos''=mondo/universo e ''lambánō''=che prende/comprende).
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|nome=  
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Name coined by the inventor (in French, "cosmolabe") as a variant of astrolabe (from the Greek "kosmos"=world/universe and "lambánō"=that which takes/comprises).  
|inventore=  Jacques Besson
|inventore=  Jacques Besson
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|data= 1567
|data= 1567
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|descrizione= Strumento inventato e descritto da Jacques Besson (1567) in cui si riscontrano analogie con la [[bussola verticale]], con il [[planisfero geometrico]] e con la [[squadra zoppa]] di Leonardo. I due cerchi goniometrici (orizzontale e verticale) consentono di eseguire i rilevamenti territoriali e di redigere le relative carte corografiche. La squadra zoppa consente di misurare le altezze e di tracciare i punti, grazie a uno stilo inserito nello snodo, per la redazione delle carte corografiche. L'autore descrive anche l'uso dello strumento nel disegno prospettico di una mappa del cielo e nella deformazione anamorfica delle immagini: "En perspective scavoir par le Cosmolabe representer et pourtraire toutes choses qui se presentent à la veüe, ainsy qu'elles peuvent apparoistre dans toutes positions et especes de Miroers" (III, IV, 271).
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|descrizione=  
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Instrument invented and described by Jacques Besson (1567), having features similar to the vertical compass, the [[Geometric Planisphere | geometric planisphere]], and Leonardo's [[Folding Square | folding square]]. The two goniometric circles (horizontal and vertical) were used for land surveying and compiling the relevant corographic charts. The folding square was used to measure heights and to plot points, thanks to a stylus inserted in the joint, for compiling the corographic charts. The author also describes how the instrument can be used for drawing a map of the sky in perspective and for the anamorphic deformation of images: "En perspective scavoir par le Cosmolabe representer et pourtraire toutes choses qui se presentent à la veüe, ainsy qu'elles peuvent apparoistre dans toutes positions et especes de Miroers" (In perspective one can by the Cosmolabe represent and portray everything that appears to the view, as it can appear in all positions and all kinds of mirrors"] (III, IV, 271).  
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http://www.jstor.org/stable/3102731 (english article about Jacques Besson).
|immagini= <gallery widths=230 heights=368 perrow=3>
|immagini= <gallery widths=230 heights=368 perrow=3>
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|categoria_1= Measuring instruments
|categoria_1= Measuring instruments
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|categoria_2= Drawring instruments
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|categoria_2= Drawing instruments
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Current revision as of 16:17, 7 September 2010

Name coined by the inventor (in French, "cosmolabe") as a variant of astrolabe (from the Greek "kosmos"=world/universe and "lambánō"=that which takes/comprises).

Contents

Inventor

Jacques Besson


Historic Period

1567


Description

Instrument invented and described by Jacques Besson (1567), having features similar to the vertical compass, the geometric planisphere, and Leonardo's folding square. The two goniometric circles (horizontal and vertical) were used for land surveying and compiling the relevant corographic charts. The folding square was used to measure heights and to plot points, thanks to a stylus inserted in the joint, for compiling the corographic charts. The author also describes how the instrument can be used for drawing a map of the sky in perspective and for the anamorphic deformation of images: "En perspective scavoir par le Cosmolabe representer et pourtraire toutes choses qui se presentent à la veüe, ainsy qu'elles peuvent apparoistre dans toutes positions et especes de Miroers" (In perspective one can by the Cosmolabe represent and portray everything that appears to the view, as it can appear in all positions and all kinds of mirrors"] (III, IV, 271).


Bibliographical Resources

Besson, Jacques. Le cosmolabe, ou Instrument universel concernant toutes observations qui se peuvent faire par les sciences mathematiques, tant au ciel, en la terre, comme en la mer, de l'invention de m. Iaques Besson... , A Paris, par Ph.G. de Rouille, 1567.

Besson, Jacques. Le cosmographe instrument adioinct en la superieure partieu du cosmolabe au lieu de l'atlas.Paris, 1569, p. 300, 321.


Links (External)

http://www.jstor.org/stable/3102731 (english article about Jacques Besson).


Images


Author of the entry: Filippo Camerota

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