Concept

Human's firm and gentle can be told with clenched fists and open inclusinve plam. In this way, the ridge of the hand can be fluctuated hardly or smoothly. These can shape a mountain of human character.

Human can be firm and gentle, so do a mountain to be hard and soft. I want to metaphor a human being as a mountain.



When an ordinary person like Lulu is here at the installation, she saw a flat surface. When she put her fist firm into the mountain surface, then she would see the mountain arise.



#### Techinical Concern In order to move the montain to arise, I need to find a motor that will be powerful enough and easy to control.
I plan to use linear actuator.
I notice there are multiple kinds of linear actuator. Some of them are simple motor style and some of them is stepper motor style.