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17 giug 1872 anni - 1872 begins oceanography with The Challenger Expedition. What is oceanography? Oceanography is when scientists measure sea depth, study the composition of the sea floor, and collect a lot of oceanic data.

Aggiunto al nastro di tempo:

13 ott 2017
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Data:

17 giug 1872 anni
Adesso
~ 153 years ago

Immagini: