Jan Kazimierz Danysz - AbsoluteAstronomy.com

Jan Kazimierz Danysz was a Polish

Poland

Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

Physicist.

Danysz was an assistant of Maria Skłodowska-Curie and creator of the first spectrometer beta.

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