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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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22 lugl 1919 anni - First measurements of thickness of the ozone layer
Aggiunto al nastro di tempo:
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By
Slimes
22 set 2017
0
0
611
Data:
22 lugl 1919 anni
Adesso
~ 106 years ago
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