Menu
501 of 520
Previousnext
FirstLast
Sorted by:
Instrument type
Maker
Place
Date
Overview
Details
 Catalogue


Triangulation Instrument
Signed by Jost Bürgi
circa 1600; German
Gilt brass; 324 mm in length (baseline arm)

This instrument was designed for range-finding in gunnery, and was made by one of the people associated with the invention of this type of device, Jost B?rgi. In fact other mathematicians claimed to have designed instruments working on similar principles.

In use, one arm was adjusted to the length of a measured baseline, reduced to scale, and the other two aligned on the target from either end of this line. The range could then be taken from scales on the arms. The connection with gunnery is reinforced by scales engraved underneath which give the weight for a range of sizes of shot of different materials.

The instrument is simple but very finely made, and is engraved with the name of the original owner, Alberto Marchoni.

Museum of the History of Science, Oxford
Inventory number 54181

© Museum of the History of Science, Oxford. All rights reserved. Information and images provided here may not be reproduced in any form or by any means without the prior written permission of the museum.

Basic URL: http://www.mhs.ox.ac.uk/epact/catalogue.php?ENumber=19860

|| Introduction || Essay || Museums || Bibliography || Conventions || Credits || Privacy || Help ||
|Catalogue entries |Handlist || Makers || Places || Articles || Glossary || Search || Home ||