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1 янв 1847 г. - 1847 Helmholtz privately published a paper on the Law of Conservation of Energy
Добавлено на ленту времени:
Important dates in psychological history
By
Natasha Gualy
7 мар 2018
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853
Дата:
1 янв 1847 г.
Сейчас
~ 178 г назад
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