Image:Newton's reflecting quadrant.png

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[edit] Summary

Description

Drawing of Isaac Newton's reflecting quadrant (often called sextant).
Source

Memoirs of the Life, Writings, and Discoveries of Sir Isaac Newton
Date

1855
Author

David Brewster
Permission
(Reusing this image)

see below

[edit] Licensing

Public domain This image (or other media file) is in the public domain because its copyright has expired.

This applies to the United States, Canada, the European Union and those countries with a copyright term of life of the author plus 70 years.

Note that a few countries have copyright terms longer than 70 years: Mexico has 100 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. Côte d'Ivoire has a general copyright term of 99 years and Honduras has 75 years, but they do implement that rule of the shorter term.

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File history

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Date/TimeDimensionsUserComment
current22:50, 23 September 20071,740×1,152 (19 KB)Michael Daly ({{Information |Description=Drawing of Isaac Newton's reflecting quadrant (often called sextant). |Source=Memoirs of the Life, Writings, and Discoveries of Sir Isaac Newton |Date=1855 |Author=David Brewster |Permission= |other_versions= }} )
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