A house jack. Know what a house jack is? This is a house jack. Not the guy ... the thing that looks like a car jack. That orange cylinder is a house jack in use.
It is jacking up the corner of my house, making it so that the front edge of the living room is not at an elevation lower than the middle or back part. And this new sensation of a level living room floor is ... well, it's new and nice and good, ... but ... I think I need to learn some serious biofeedback techniques to get through this remodeling. During the changing floor elevations coming into being, the house sounds as if it's going to shatter.