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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
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1 gen 1899 anni - James Dewar collected solid hydrogen for the first time.
Aggiunto al nastro di tempo:
Hydrogen Tech
By
Yehuda
2 set 2017
0
0
1422
Data:
1 gen 1899 anni
Adesso
~ 126 years ago
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