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1 giug 1865 anni - John Newlands comes up with the Law of Octaves, seeing similarities between elements that differed by 7 and comparing it to octaves in music.

Aggiunto al nastro di tempo:

1st Nine Weeks Honor Project Chemistry

18 ott 2018

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Data:

1 giug 1865 anni

Adesso

~ 160 years ago

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