a 9 year time period were inventors like Hippolyte Pixii, Joseph Henry, Thomas Davenport and Sir William Robert Grove created usfeul and relevant items like the dynamo, electrical relay, electric motor and the first fuel cell. (1 янв 1832 г. – 1 янв 1841 г.)
Добавлено на ленту времени:
Дата:
1 янв 1832 г.
1 янв 1841 г.
~ 9 years