Кремний необходимый элемент для нашего организма
7 months ago 00:00:45 0
7 months ago 00:05:05 0
7 months ago 00:10:43 0
7 months ago 00:03:14 0
8 months ago 00:06:45 0
8 months ago 00:05:38 0
8 months ago 00:09:06 0
8 months ago 00:06:01 0
![Как работает транзистор [Veritasium]](https://sun9-48.userapi.com/xvVkB33wgIzzUsW2nsE0X7Ogx9kmRR_mUgJ4ow/2mWRv1RV3Zs.jpg)
8 months ago 00:07:18 0
9 months ago 00:04:00 0
9 months ago 00:02:39 0
9 months ago 00:14:34 0
9 months ago 00:12:43 0
9 months ago 00:02:52 0
9 months ago 00:03:20 0
9 months ago 00:14:00 12
9 months ago 00:23:47 0
9 months ago 00:47:40 0
10 months ago 00:24:06 26
10 months ago 00:09:19 0
10 months ago 00:02:22 23
10 months ago 00:01:37 1
10 months ago 01:09:51 3
10 months ago 00:00:19 0
