29 янв 1749 г. - Lightning Rod
Описание:
The lightning rod was first invented by Benjamin Franklin in 1749. It was used to provide a low-resistance path underground that can be used to conduct the enormous electrical currents when lightning strikes hit. People mistaken the lightning rod as they thought it attracted electricity.Добавлено на ленту времени:
Дата:
29 янв 1749 г.
Сейчас
~ 275 г назад
