 This video is of an underground nuclear weapons test. One of the amazing things in it is the trailers or containers that have hydraulic shocks on them. They are set on cement pilings like you would expect but then a giant hydraulic shock runs all the way up to the top of the building. When the explosion goes off it shows the trailers riding up and down as if they were on water but because of the hydraulic shocks they seem to ride it out fine. The other amazing thing in the video is the vapor or smoke or cloud or whatever that forms very near the ground. It appears that the cloud is actually from a lake with all the water in the lake just shooting up into the air. It doesn't say which country the nuclear weapons test was conducted by but it looks like old footage. Pretty crazy video.
Watch the underground nuclear weapons test video for yourself. Source: Big-boys.com | 
