Телеграф.Электромагнитный телеграф и как он работает!
В видео описывается работа электромагнитного телеграфа!
3 weeks ago 01:32:38 1
4 weeks ago 00:04:32 1
2 months ago 01:26:53 1
5 months ago 00:45:03 1
8 months ago 00:05:22 1
1 year ago 00:02:06 1
1 year ago 00:14:44 1
2 years ago 00:00:00 9
2 years ago 00:11:36 2
3 years ago 00:01:33 3
3 years ago 00:03:19 12
3 years ago 00:14:49 1
3 years ago 00:12:52 1
3 years ago 00:34:43 1
3 years ago 00:02:16 1
4 years ago 00:00:24 1
5 years ago 00:00:27 1
5 years ago 00:30:01 5
5 years ago 00:11:57 1
6 years ago 00:41:37 19
9 years ago 00:02:42 3
9 years ago 00:03:52 1
9 years ago 00:02:30 4
9 years ago 00:02:48 4
