Euclid's Staff
From Inventions
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| - | |nome= Name adopted by the inventor with reference to the more common [[Cross-Staff]]. | + | |nome= Name adopted by the inventor with reference to the more common [[Cross-Staff | cross-staff]]. |
|descrizione= | |descrizione= | ||
| - | 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. | + | 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 | ||
Revision as of 15:51, 11 November 2009
Name adopted by the inventor with reference to the more common cross-staff.
Contents |
Inventor
Leonardo da Vinci
Historic Period
c. 1490
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.
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.
Images
Unavailable image
Il bacolo di Euclide, C.A., 400v (già 148vb). |
Author of the entry: Filippo Camerota
