Алексей Сергеев “Ни шагу назад “
конкурс чтецов “Мы о войне стихами говорим“
6 months ago 00:34:53 1
![Странные следствия уравнений Эйнштейна [Veritasium]](https://sun9-25.userapi.com/byJcX-HDe2-_nYlDB8rG_Dtxy_ZR17ZMYiWpjA/BPut1J5WZJA.jpg)
6 months ago 00:11:57 1
![Аэрогель — самый легкий твердый материал [Veritasium]](https://sun9-47.userapi.com/meRgVJEgG3EB6bpa8sOVIHrZ5GMx2-v16Ki7rw/OnAcDUZWMIQ.jpg)
6 months ago 00:05:03 1
6 months ago 00:46:57 1
6 months ago 01:31:55 1
6 months ago 00:05:18 1
6 months ago 00:36:54 1
6 months ago 00:04:09 1
6 months ago 01:44:43 1
6 months ago 00:04:08 1
6 months ago 00:05:27 1
6 months ago 00:30:08 1
![Старейшая нерешённая задача [Veritasium]](https://sun9-27.userapi.com/HwNc9xdS0TRu8_hZ-mrB_7LUwdOGk1J_iW9s9w/nARV-Mx-50c.jpg)
6 months ago 00:04:01 1
6 months ago 00:03:04 1
6 months ago 00:06:38 1
6 months ago 00:04:09 1
6 months ago 00:48:03 1
6 months ago 00:04:54 1
6 months ago 00:03:48 1
6 months ago 00:32:22 1
![Почти невозможно: как изобрели синий светодиод [Veritasium]](https://sun9-21.userapi.com/c8DBu1hdyPy19d9MJAk66_8RY_VuUFMGtfcUtQ/wowZm6x4-sM.jpg)
6 months ago 00:06:37 1
6 months ago 06:25:03 1
6 months ago 00:40:57 1
6 months ago 00:04:34 1
