1 янв 1832 г. - Telegraph
Описание:
The telegraph worked by sending electrical signals over a wire. A message was sent from one place by using a series of taps, holds, and pauses. The receiving place then got the same taps, holds, and pauses on their end allowing them to translate the message with morse code.Добавлено на ленту времени:
Дата:
1 янв 1832 г.
Сейчас
~ 192 г назад
