Пьер и Мария Кюри - Склодовская. - “Полоний, радий и радиоактивность.“
ИСТОРИЯ НАУЧНОГО ОТКРЫТИЯ !
1 month ago 00:39:01 1
1 month ago 00:08:58 2
1 month ago 00:49:07 2
1 month ago 00:28:45 2
1 month ago 00:00:00 1
1 month ago 00:05:33 1
2 months ago 00:00:00 2
2 months ago 00:14:17 1
2 months ago 00:28:07 1
2 months ago 00:02:25 1
3 months ago 02:32:42 1
4 months ago 00:03:39 1
4 months ago 01:46:32 1
4 months ago 00:33:52 1
4 months ago 00:43:20 2
4 months ago 00:09:03 1
4 months ago 00:07:50 1
4 months ago 00:39:30 1
4 months ago 00:56:19 1
4 months ago 00:26:47 1
4 months ago 00:02:51 1
4 months ago 00:21:42 1
4 months ago 00:09:57 1
4 months ago 01:53:18 2
