This is a file from the Wikimedia Commons

File:Britannica Figure of the Earth.jpg

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Original file(525 × 907 pixels, file size: 84 KB, MIME type: image/jpeg)

Summary

Description
English: A meridian arc extending from the Shetland Islands, through Great Britain, France and Spain to El Aghuat in Algeria, whose parameters were calculated from surveys carried out in the mid to late 19th century. It yielded a value for the equatorial radius of the earth a = 6 377 935 metres, the ellipticity being assumed as 1/299.15. The radius of curvature of this arc is not uniform, being, in the mean, about 600 metres greater in the northern than in the southern part. The Greenwich meridian is depicted rather than the Paris meridian.
Date
Source Encyclopædia Britannica, 1911
Author Encyclopædia Britannica, Volume 8, Slice 9., available freely at Project Gutenberg

Licensing

Public domain This image comes from the 12th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1925. As such, this image is in the public domain in the United States.
Ad Encyclopaedia-Britannica 05-1913.jpg
Public domain This image comes from the Project Gutenberg archives. This is an image that has come from a book or document for which the American copyright has expired and this image is in the public domain in the United States and possibly other countries.

Nuvola apps important.svg Note: Not all works on Project Gutenberg are in the public domain. Some public domain works may have trademark restrictions where all references to the Project Gutenberg must be removed unless the following text is prominently displayed according to The Full Project Gutenberg License in Legalese (normative):

This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.net

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current16:46, 19 February 2011Thumbnail for version as of 16:46, 19 February 2011525 × 907 (84 KB)Keith Edkins=={{int:filedesc}}== {{Information |Description={{en|A meridian arc extending from the Shetland Islands, through Great Britain, France and Spain to El Aghuat in Algeria, whose parameters were calculated from surveys carried out in the mid to late 19th cen
The following pages on the English Wikipedia use this file (pages on other projects are not listed):

Global file usage

The following other wikis use this file: