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24 май 1794 г. - Joseph Louis Proust

Описание:

Proust was a French chemist that was best known for his discovery of the law of constant composition in 1794. This stated that chemical compounds always combine in constant proportions.

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4 янв 2019
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Дата:

24 май 1794 г.
Сейчас
~ 231 г назад

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