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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
June 15, 2024
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20 feb 1896 anni - Henri Becquerel: While studying the effect of x-rays on photographic film, he discovered some chemicals spontaneously decompose and give off very pentrating rays.

Aggiunto al nastro di tempo:

Data:

20 feb 1896 anni
Adesso
~ 128 years ago