Кремний, основа жизни Научфильм. СССР
Кремний, мы должны это знать. (Хвощ полевой, о нем тоже поищите инф. дешево и сердито)
2 months ago 00:13:23 1
2 months ago 01:40:43 1
2 months ago 01:13:45 1
2 months ago 00:21:58 1
2 months ago 00:09:19 1
2 months ago 00:09:39 3
2 months ago 00:17:16 1
2 months ago 02:30:46 1
2 months ago 00:09:37 1
3 months ago 00:01:00 1
3 months ago 00:03:30 1
3 months ago 00:04:52 1
3 months ago 00:12:44 1
3 months ago 00:02:23 1
3 months ago 00:58:21 1
3 months ago 00:09:06 1
3 months ago 00:14:45 1
3 months ago 00:05:42 1
3 months ago 00:03:00 1
3 months ago 00:10:05 1
3 months ago 00:08:33 1
3 months ago 00:18:27 1
3 months ago 00:12:51 1
3 months ago 00:17:46 1
