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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
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12 gen 1901 anni - Max Planck experimented with black body(an object that absorbs electromagnetic radium) which led to his Planck Postulate which describes the stability of electrons

Aggiunto al nastro di tempo:

Data:

12 gen 1901 anni
Adesso
~ 123 years ago