Да, господин премьер-министр 1-4
3 months ago 00:09:07 1
3 months ago 00:32:22 1
![Почти невозможно: как изобрели синий светодиод [Veritasium]](https://sun9-21.userapi.com/c8DBu1hdyPy19d9MJAk66_8RY_VuUFMGtfcUtQ/oSyV3EOO4hQ.jpg)
3 months ago 00:04:14 1
3 months ago 00:00:01 23
3 months ago 00:00:25 1
3 months ago 00:00:09 45
3 months ago 03:19:16 1
3 months ago 02:16:55 1
3 months ago 00:03:40 1
3 months ago 00:03:35 1
3 months ago 00:26:14 1
3 months ago 00:04:24 1
3 months ago 00:02:09 1
3 months ago 00:00:00 1
3 months ago 00:18:12 1
3 months ago 02:06:33 1
3 months ago 00:02:50 1
3 months ago 01:26:33 1
3 months ago 00:07:33 1
3 months ago 00:02:56 1
3 months ago 00:11:04 1
3 months ago 00:05:03 1
3 months ago 00:03:32 7
3 months ago 00:00:25 4