This is the video about Russian sleep experiment so it maybe wrong. I want to give credits to the owner of this video that is..
[ Ссылка ]
The information was from Wikipedia so here's the link.
[ Ссылка ]
Music.
[ Ссылка ]
![](https://i.ytimg.com/vi/_tVIrU0wQ7I/maxresdefault.jpg)
This is the video about Russian sleep experiment so it maybe wrong. I want to give credits to the owner of this video that is..
[ Ссылка ]
The information was from Wikipedia so here's the link.
[ Ссылка ]
Music.
[ Ссылка ]