Euclid's Staff

From Inventions

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	{{Template invention		{{Template invention
-	|nome= Nome adottato dall'inventore con riferimento al più diffuso [[bacolo]].	+	|nome= Name adopted by the inventor with reference to the more common [[Cross-Staff | cross-staff]].
-	|descrizione= Si tratta di una variante del [[Bacolo]] o [[Bastone di Giacobbe]] che Leonardo illustra nel Codice Atlantico (400v, già 148vb). Invece del bastone trasversale, questo bacolo ha una croce all'estremità del bastone principale che permette di misurare al tempo stesso le altezze e le larghezze, o di ribaltare un'altezza sul piano orizzontale per misurarne direttamente la quantità	+	|descrizione=
		+	This is a variant of the [[Cross-Staff | cross-staff]] or Jacob’s staff illustrated by Leonardo in the Codex Atlanticus (400v, formerly 148vb). Instead of the cross-rod, this instrument has a cross at the end of the main stick, enabling its user to measure heights and widths at the same time, or to overturn a height onto the horizontal plane to measure its dimension directly.
	|inventore= Leonardo da Vinci		|inventore= Leonardo da Vinci
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	|link=		|link=
		+	http://www.museo.unimo.it/theatrum/macchine/_00lab.htm (Italian)<br>
		+	http://archiviomacmat.unimore.it/PAWeb/Sito/Italiano/PDF/Intro1.pdf (Italian)
-	|immagini= <gallery widths=230 heights=368 perrow=3>
-	Image: File.jpg | Il bacolo di Euclide, C.A., 400v (già 148vb).	+	|immagini=
-		+
-		+
-	</gallery>	+
	|autore_scheda= Filippo Camerota		|autore_scheda= Filippo Camerota

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Current revision as of 12:18, 7 September 2010

Name adopted by the inventor with reference to the more common cross-staff.

Contents 1 Inventor 2 Historic Period 3 Description 4 Bibliographical Resources 5 Links (External)

Inventor

Leonardo da Vinci

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Historic Period

c. 1490

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Description

This is a variant of the cross-staff or Jacob’s staff illustrated by Leonardo in the Codex Atlanticus (400v, formerly 148vb). Instead of the cross-rod, this instrument has a cross at the end of the main stick, enabling its user to measure heights and widths at the same time, or to overturn a height onto the horizontal plane to measure its dimension directly.

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Bibliographical Resources

Leonardo da Vinci. Il Codice Atlantico della Biblioteca Ambrosiana di Milano. Trascrizione critica Augusto Marinoni, presentazione Carlo Pedretti, nota alla trascrizione Pietro C. Marani. Firenze, Giunti, 2006, c. 148vb., 400v.

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Links (External)

http://www.museo.unimo.it/theatrum/macchine/_00lab.htm (Italian)
http://archiviomacmat.unimore.it/PAWeb/Sito/Italiano/PDF/Intro1.pdf (Italian)

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Author of the entry: Filippo Camerota