Marie and Pierre Curie proved the existence of the new element radium when they chemically isolated one-tenth of a gram of pure radium chloride.
21st June 1919: The German High Seas naval fleet is scuttled at Scapa Flow
21st June 2019
Marie and Pierre Curie proved the existence of the new element radium when they chemically isolated one-tenth of a gram of pure radium chloride.
Röntgen was experimenting with vacuum tubes at the University of Würzburg when he discovered the new ‘invisible light’ on 8 November 1895.
28th June 2015
11th November 2022
11th November 2022
9th November 2019