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Observer effect: Revision history


Here you can take a look at older versions of this page, and compare different versions.

  • Click the date to see an old version.
  • To compare two versions (changes), click the circles (in separate columns) next to them. Then click the Compare button to see the differences between them.
  • You can use (cur) to compare an old version with the newest (or current) one. You can use (last) to compare any version with the one just before it.
  • The letter m next to a change means that the change was marked as small (or minor).

22 December 2023

21 August 2023

18 April 2023

13 March 2022

29 December 2020

28 December 2020

26 April 2019

22 April 2019

2 February 2018

29 January 2018

25 September 2017

1 March 2017

21 November 2016

12 January 2015

20 October 2014

25 September 2014

9 March 2013

12 June 2012

5 May 2012

19 April 2012

23 September 2011

11 September 2010

31 May 2010

7 September 2009

7 January 2009

4 November 2008

24 September 2008

13 June 2008

26 January 2008

3 July 2007