Surveying Compass

From Inventions

(Difference between revisions)
Jump to: navigation, search
 
Line 19: Line 19:
|strumentiesistenti=  
|strumentiesistenti=  
 +
- Museo Galileo, Institute and Museum of the History of Science, Florence <br>
[http://catalogue.museogalileo.it/object/Theodolite_n01.html Florence, Museo Galileo. Institute and Museum of the History of Science, inv. 154.]<br />
[http://catalogue.museogalileo.it/object/Theodolite_n01.html Florence, Museo Galileo. Institute and Museum of the History of Science, inv. 154.]<br />
[http://catalogue.museogalileo.it/object/SurveyingCompass_n01.html Florence, Museo Galileo. Institute and Museum of the History of Science, inv. 1279.]<br />
[http://catalogue.museogalileo.it/object/SurveyingCompass_n01.html Florence, Museo Galileo. Institute and Museum of the History of Science, inv. 1279.]<br />
Line 24: Line 25:
[http://catalogue.museogalileo.it/object/SurveyingCompass_n03.html Florence, Museo Galileo. Institute and Museum of the History of Science, inv. 3371.]<br />
[http://catalogue.museogalileo.it/object/SurveyingCompass_n03.html Florence, Museo Galileo. Institute and Museum of the History of Science, inv. 3371.]<br />
[http://catalogue.museogalileo.it/object/SurveyingCompass_n08.html Florence, Museo Galileo. Institute and Museum of the History of Science, inv. 2506.]<br />
[http://catalogue.museogalileo.it/object/SurveyingCompass_n08.html Florence, Museo Galileo. Institute and Museum of the History of Science, inv. 2506.]<br />
 +
 +
 +
- The Science Museum, London<br>
 +
[http://www.ingenious.org.uk/site.asp?s=S2&DCID=1979-256# The Science museum, inv. 1979-256]<br>
 +
 +
 +
- Museum of the History of Science, Oxford <br>
 +
[http://emu.mhs.ox.ac.uk/Display.php?irn=9282&QueryPage=%2FAdvQuery.php Museum of the History of Science, Oxford, inv. 86999]<br>
 +
 +
|link=
|link=
 +
http://www.isissbuonarroti.it/museo/19.htm (Italian)<br>
 +
http://www.itgalucca.it/aggiornabili/documentazione/Nottolini/museo/schedf5.htm (Italian)<br>
 +
http://americanhistory.si.edu/collections/surveying/type.cfm?typeid=1 (English)
 +
 +
 +
|immagini= <gallery widths=300 heights=480 perrow=3>
|immagini= <gallery widths=300 heights=480 perrow=3>

Current revision as of 13:25, 7 September 2010

Name currently used to distinguish the instrument used for surveying from the instrument of orientation also called compass.


Contents

Historic Period

15th-16th C.


Description

Goniometric circle similar to the horizon of Leon Battista Alberti but equipped with diopter and magnetic needle. The circumference is divided into 8 sectors designating the directions of the winds (Tramontana, Greco, Levante, Scirocco, Ostro, Libeccio, Ponente, Maestro), and each part is divided generally into 45°, for a total of 360°. In Raphael’s famous letter to Pope Leo X (c.1515), containing a first description of this instrument, the suggested division is 4 degrees for each wind, for a total of 32 degrees. The position angle of a place is read in relation to the direction of the wind blowing from the sector of the circumference carrying the diopter. The instrument is named for the compass usually found at the centre of the graduated disc.


Bibliographical Resources

Bartoli, Cosimo. Del modo di misurare le distantie, le superficie, i corpi, le piante, le provincie, le prospettive, & tutte le altre cose terrene, che possono occorrere a gli huomini..., Venezia, Francesco Franceschi, 1564.

Sanzio, Raffaello. Memoria a Leone X, in Raffaello Sanzio, Tutti gli scritti, a cura di Ettore Camesasca, Milano, Rizzoli, 1956, pp. 51-64.


Existing Instruments

- Museo Galileo, Institute and Museum of the History of Science, Florence
Florence, Museo Galileo. Institute and Museum of the History of Science, inv. 154.
Florence, Museo Galileo. Institute and Museum of the History of Science, inv. 1279.
Florence, Museo Galileo. Institute and Museum of the History of Science, inv. 144.
Florence, Museo Galileo. Institute and Museum of the History of Science, inv. 3371.
Florence, Museo Galileo. Institute and Museum of the History of Science, inv. 2506.


- The Science Museum, London
The Science museum, inv. 1979-256


- Museum of the History of Science, Oxford
Museum of the History of Science, Oxford, inv. 86999


Links (External)

http://www.isissbuonarroti.it/museo/19.htm (Italian)
http://www.itgalucca.it/aggiornabili/documentazione/Nottolini/museo/schedf5.htm (Italian)
http://americanhistory.si.edu/collections/surveying/type.cfm?typeid=1 (English)


Images


Author of the entry: Filippo Camerota

Personal tools
Categories
In other languages