On the example of the history of the discovery of the "solar substance" Helium, the history of the most important discoveries in the field of physics and chemistry of the early XX century is given.
Release Date: January 01, 1991
Last Aired: January 01, 1993
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March 02, 2017
January 01, 1995
April 25, 2010
August 09, 2015
July 04, 2016
January 01, 2015
July 26, 2007
June 10, 1980
February 15, 2018
September 27, 2005
November 04, 2015
April 17, 2021
September 13, 2012
November 02, 2011
October 28, 2003
April 20, 2015
January 10, 2017
October 06, 1958
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September 16, 2013