File:Tondo e quadro detail (Bianco, 1436).jpg

Original file(1,090 × 722 pixels, file size: 326 KB, MIME type: image/jpeg)

Description
English: Detail from the tondo e quadro ("circle and square") of the 1436 atlas of Venetian cartographer Andrea Bianco. Detail shows the upper-left corner of the square grid. There is a distance bar scale, with two different scales. The top bar (with tiny dots) measures a unit of the square grid at 20 miles (each dot is 1 mile). The bottom bar (with lines) measures a unit of the square grid at 100 miles (each vertical red line is 10 miles). Bianco notes that by using the 20m-per-unit scale the 8 x 8 grid quadro will have a total length of 160 miles. Notice also that Bianco has sixteen rays emanating from the corner, implying he is using half-quarter winds #eighth winds, otava, 5.625 degrees. The 1436 Atlas is held by the Biblioteca nazionale Marciana, Venice.
Date (UTC)
Source Atlante Bianco, Biblioteca nazionale Marciana, Venice (no.)
Author

Andrea Bianco


This is a retouched picture, which means that it has been digitally altered from its original version. The original can be viewed here: Tondo e quadro (Bianco, 1436).jpg.


Public domain

This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.


You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Jamaica has 95 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Honduras has a general copyright term of 75 years, but it does implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II (more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated victims of Soviet repressions (more information).

Original upload log

This image is a derivative work of the following images:

Uploaded with derivativeFX

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

21 July 2011

File history

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

Date/TimeThumbnailDimensionsUserComment
current19:45, 21 July 2011Thumbnail for version as of 19:45, 21 July 20111,090 × 722 (326 KB)WalrasiadWrong file before.
19:43, 21 July 2011Thumbnail for version as of 19:43, 21 July 2011529 × 201 (31 KB)Walrasiad{{Information |Description={{en|1=Detail from the ''tondo e quadro'' ("circle and square") of the 1436 atlas of Venetian cartographer Andrea Bianco# Detail shows the upper-left corner of the square grid# There is a distance bar scale, with two different
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:

Metadata