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
March 02, 2017
April 17, 2021
January 01, 1995
August 09, 2015
April 25, 2010
July 26, 2007
January 01, 2015
September 13, 2012
July 04, 2016
September 27, 2005
June 10, 1980
November 04, 2015
October 28, 2003
February 15, 2018
March 31, 2016
April 01, 2021
April 20, 2015
January 10, 2017
October 06, 1958
August 25, 2021