_mesh/gap/holes
2. hidden or not
_
3. reconnection
_two different materials or properties
4. bird movement/any organic movement
5. change
_outside temp, wind, light, all change, but inside remains same.
6. tube chair
7. sand clock
8. trap
_bar, light, sound,
9. graphic work
10. old works_obscura/rain drop/light reflection chair
11. kinect/ moving archictecture