1 янв 1798 г. - The discoverer of the Element!
Описание:
Antoine Lavoisier, the definer of the "Law of Conservation of mass", stated that an element is a substance that can't be broken down by some methods such as chemical ones.Добавлено на ленту времени:
Дата:
1 янв 1798 г.
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~ 227 г назад