File:Duhem Statique ch 2 fig 8.JPG

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English: Fig. 8: Another of Leonardo da Vinci's diagrams illustrating his tentative supposition that the proportion of the speed of a sphere down an inclined plane relative to free fall is the same as the fraction of the horizontal distance of the vertical of the point of contact to the vertical of the center of gravity over the sphere's radius; and later the proportion of the weights on either side of the vertical of the point of contact. The figure is missing a label n whose location seems to belong at the bottom of the vertical of the center of gravity.
Date
Source Les Origines de la Statique (1905-1906)
Author
Pierre Duhem  (1861–1916)  wikidata:Q314172 s:en:Author:Pierre Duhem q:en:Pierre Duhem
 
Pierre Duhem
Alternative names
pseudonym: Ch. Clérice; Pierre Maurice Marie Duhem; Pierre Maurice Duhem
Description French philosopher, physicist, university teacher, chemist, mathematician and philosopher of science
Date of birth/death 10 June 1861 Edit this at Wikidata 14 September 1916 Edit this at Wikidata
Location of birth/death 2nd arrondissement of Paris Cabrespine
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creator QS:P170,Q314172
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The author died in 1916, so 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 100 years or fewer.

This work is in the public domain in the United States because it meets three requirements:

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  2. it was first published before 1 March 1989 without copyright notice or before 1964 without copyright renewal or before the source country established copyright relations with the United States,
  3. it was in the public domain in its home country (France) on the URAA date (1 January 1996).
For background information, see the explanations on Non-U.S. copyrights.
Works by this author may also be in the public domain in countries and areas with longer native copyright terms that apply the rule of the shorter term to foreign works.
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