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jan 1, 1896 - Marie Skłodowska Curie

Description:

Warsaw, Poland
1896
The 1896 discovery of radioactivity by Henri Becquerel inspired Marie and Pierre Curie to further investigate this phenomenon. They examined many substances and minerals for signs of radioactivity. They found that the mineral pitchblende was more radioactive than uranium and concluded that it must contain other radioactive substances. From it they managed to extract two previously unknown elements, polonium and radium, both more radioactive than uranium.

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Byin
5 Nov 2017
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Date:

jan 1, 1896
Now
~ 130 years ago

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