простой искровой передатчик
7 years ago 00:08:00 115
8 years ago 00:05:40 360
6 years ago 00:14:17 81
![☢ Ядерная физика: искровой альфа-детектор. Сделай сам! [Олег Айзон]](https://sun9-24.userapi.com/c857428/v857428966/ab0d1/53-wGCb_RFg.jpg)
4 years ago 00:11:36 7
3 years ago 00:05:11 1
3 years ago 00:03:13 33
10 years ago 00:06:38 8
4 years ago 00:13:16 42
![☢ Измерение радиации обычной вебкамерой. [Олег Айзон]](https://sun9-74.userapi.com/sjiBpXlXevHLxFJ0FduSdxbjFRPf1VmF_GYk0A/OnWz8i-xGxE.jpg)
6 years ago 00:03:46 1
2 years ago 00:16:04 3
4 years ago 00:09:19 1
6 years ago 00:05:59 9
4 years ago 00:25:57 18
4 years ago 00:08:42 13
4 years ago 00:27:39 8
2 years ago 00:05:14 3
3 years ago 01:08:23 6
4 years ago 00:04:08 2
1 year ago 00:30:53 1
![ГЕНИЙ, ХУДОЖНИК и ЛЕНТЯЙ - Леонардо да Винчи и МИФЫ [История в Личностях]](https://sun9-70.userapi.com/R3rsTEySx47cDBqP6GTlhD206SmRymFpRElE6A/QfmwQinmqak.jpg)
2 years ago 00:10:02 1
4 years ago 00:11:46 4
4 years ago 00:00:16 2
2 years ago 00:18:27 28
1 year ago 00:01:21 2
