Image:Newton quadrant detail.png

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[edit] Summary

Description

Detail from a drawing of Newton's reflecting quadrant
Source

“Newton’s Octant” (posthumous description), Philosophical Transactions of the Royal Society, vol. 42, p. 155, 1742
Date

1742
Author

Isaac Newton
Permission
(Reusing this image)

see below

Colour added to a few lines to emphasize details of light paths.

[edit] Licensing

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

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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
current21:50, 25 September 2007700×444 (19 KB)Michael Daly ({{Information |Description=Detail form a drawing of Newton's reflecting quadrant |Source=“Newton’s Octant” (posthumous description), Philosophical Transactions of the Royal Society, vol. 42, p. 155, 1742 |Date=1742 |Author=Isaac Newton |Permission= )
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