sitemap | help
Click here to access to our stories featuring images from our collections and related materials ranging from Unusual takes, voices to biographies and more. Click here to find a feature debate and other debates related to some of our subjects and topics found with the READ section, please note, you need to be a registered user to participate in debates Click here to browse or search for images and related materials.  Alternatively use the advanced search for more detailed queries. Click here to create your own web galleries using our image collections or to personalise your experience within Ingenious.  Please note that you need to be a registered user to work with the CREATE tools.  Go to the 'Register' link to utilise Ingenious Create Tools Menu Log in Menu Search
Spacer image
Spacer image
See Circular slide rule, 1660-1680.
Spacer image
Circular slide rule, 1660-1680.
add this image to lightboxsend image as an e-cardsee larger image
Picture Number:10328276
Credit:Science Museum/Science & Society Picture Library
Description:
A circular slide rule, made by John Brown, with two brass radial arms and an stronomical quadrant engraved on the back. A spiral slide rule affords a long and therefore accurate logarithmic line in a small amount of space. The potential of spiral rules was not really utilized until the Victorian period, when several spiral and helical designs appeared on the market.
Spacer image
Object Number: 1954-433
Spacer image
Date Made: 1660-1680
Spacer image
Place of Production: World > Europe > United Kingdom > England
Spacer image
In Collection of: Science Museum
Spacer image
Subject(s) > Science & Technology > Mathematics
Spacer image
Spacer image
Other Related Views:
picture number:10328276 Title:Circular slide rule, 1660-1680.
Circular slide rule, 1660-1680.
Spacer image
picture number:10328277 Title:Circular slide rule, 1660-1680.
Circular slide rule, 1660-1680.
Spacer image
Spacer image
Spacer image
 
Click here to print this page in a printer friendly format  > Printer friendly version > Back to top
© NMSI. All rights reserved. | terms of use | sitemap | contact us | accessibility | privacy | who we are