7 янв 1865 г. - J.A.R. Newland made his Law of Octaves
Описание:
If you sort things by a specific thing on the periodic table, there will always be 8 elements that you need to put in a group before you move onto the next one.Добавлено на ленту времени:
Дата:
7 янв 1865 г.
Сейчас
~ 160 г назад