Troughton's reflecting circle in the original box inscribed with maker's name. This navigational instrument was devised in the 1750's to achieve the ultimate in accuracy through the use of a circle of 360 degrees instead of the arc of 120 degrees as in the sextant. Edward Troughton, the famous London instrument maker and maker of this example, produced reflecting circles from 1796. This example was used by Colin Lamont, official timekeeper, instrument maker and teacher of mathematics in Greenock.
Troughton's Reflecting Circle
Contributed by McLean Museum and Art Gallery
Most of the content on A History of the World is created by the contributors, who are the museums and members of the public. The views expressed are theirs and unless specifically stated are not those of the ´óÏó´«Ã½ or the British Museum. The ´óÏó´«Ã½ is not responsible for the content of any external sites referenced. In the event that you consider anything on this page to be in breach of the site’s House Rules please Flag This Object.
About this object
Click a button to explore other objects in the timeline
- Location
-
London
- Culture
- Period
- Theme
- Size
- Colour
- Material
View more objects from people in Glasgow and West of Scotland.
Find out more
Podcast
Highlights from the collection
´óÏó´«Ã½ iD
´óÏó´«Ã½ navigation
´óÏó´«Ã½ links
´óÏó´«Ã½ © 2014 The ´óÏó´«Ã½ is not responsible for the content of external sites. Read more.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.
Share this link: