File:Akcelerator kaskadowy.jpg

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Original file ‎(480 × 640 pixels, file size: 154 KB, MIME type: image/jpeg)

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Description
Polski: Akcelerator kaskadowy
English: Cockcroft-Walton accelerator
Date 20 April 2006 (original upload date)
Source "Encyklopedia techniki", tom "Energia jądrowa", WNT, Warszawa 1970; Transferred from pl.wikipedia to Commons by Masur using CommonsHelper.
Author The original uploader was NH2501 at Polish Wikipedia.

Licensing[edit]

Public domain
This photograph is in the public domain because according to the Art. 3 of copyright law of March 29, 1926 of the Republic of Poland and Art. 2 of copyright law of July 10, 1952 of the People's Republic of Poland, all photographs by Polish photographers (or published for the first time in Poland or simultaneously in Poland and abroad) published without a clear copyright notice before the law was changed on May 23, 1994 are assumed to be in the public domain in Poland.

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

  1. it was first published outside the United States (and not published in the U.S. within 30 days),
  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 (Poland) on the URAA date (1 January 1996).
To uploader: Please provide where and when the image was first published.

Original upload log[edit]

The original description page was here. All following user names refer to pl.wikipedia.
  • 2006-04-20 15:29 NH2501 480×640× (284076 bytes) Akcelerator kaskadowy Fotografia pochodzi z ksiązki "Encyklopedia techniki", tom "Energia jądrowa", WNT, Warszawa 1970

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Date/TimeThumbnailDimensionsUserComment
current19:47, 6 May 2017Thumbnail for version as of 19:47, 6 May 2017480 × 640 (154 KB)Quibik (talk | contribs)
19:43, 6 May 2017Thumbnail for version as of 19:43, 6 May 2017480 × 640 (217 KB)Quibik (talk | contribs)remove halftone noise, adjust contrast
18:45, 9 August 2009Thumbnail for version as of 18:45, 9 August 2009480 × 640 (277 KB)File Upload Bot (Magnus Manske) (talk | contribs) {{BotMoveToCommons|pl.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{pl|Akcelerator kaskadowy Fotografia pochodzi z ksiązki "Encyklopedia techniki", tom "Energia jądrowa",

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