File:Genimage.jpg

Summary

Description
Français : Le problème de la bougie. A- Composantes du problème. B- Solution
Date
Source Duncker, Karl (1945) On Problem Solving, Psychological Monographs, 58, American Psychological Association OCLC: 968793.
Author Karl Duncker
Permission
(Reusing this file)		 A search was made from the copyright renewals in 1972 and the first half of 1973 (but admittedly not the second half of 1973 because it is not organized in an easily searchable manner) under the titles "A.P.A", "American Psychological Association", "APA", "Duncker", "On Problem Solving", and "Psychological Monographs" - no entries were found. This book appears not to have renewed its copyright.
Other versions
Image extraction process This image has an extracted file: Duncker candle problem (cropped).jpg.
Extracted version
Category:Images with extracted images

Licensing

Public domain
This work is in the public domain because it was published in the United States between 1931 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.

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Original upload log

Transferred from en.wikipedia to Commons by Khayman using CommonsHelper.

The original description page was here. All following user names refer to en.wikipedia.
  • 2006-04-17 14:20 Jdick1 366×388× (12056 bytes) Duncker, K.
Category:Problem solving Category:English text Category:1945 books Category:Books about psychology Category:Psychology in the 20th century Category:1945 in science
Category:1945 books Category:1945 in science Category:Books about psychology Category:English text Category:Images with extracted images Category:PD US not renewed Category:Problem solving Category:Psychology in the 20th century