Knowen - History & comments

Now you are in the subtree of Physics public knowledge tree.

Date	User name	Title of change
5 January 2023, 20:23 (UTC+00:00)	Mihail Turlakov	v
21 May 2013, 05:17 (UTC+00:00)	im	changed title and added some basic content from wiki
11 May 2013, 20:32 (UTC+00:00)	im	small change
11 May 2013, 20:30 (UTC+00:00)	im	created new node

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