Image:Invariable pendulum00.jpg

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[edit] Summary

Description

Invariable pendulum
Source

German Wikipedia
Date

ca. 1725
Author

John Harrison (1693-1776)
Permission
(Reusing this image)

Public Domain
Other versions Bild:Rostpendel2.png

[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
current05:24, 15 February 2008155×472 (9 KB)Rotational ({{Information |Description=Invariable pendulum |Source=German Wikipedia |Date=ca. 1725 |Author=John Harrison |Permission=Public Domain |other_versions=Bild:Rostpendel2.png }} Category:Pendulum)
05:22, 15 February 2008155×472 (9 KB)Rotational ({{Information |Description=Invariable pendulum |Source=Drawing by |Date=ca. 1725 |Author=John Harrison |Permission=Public Domain |other_versions=Bild:Rostpendel2.png }} Category:Pendulum)
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