Before revision: Base isolation demonstration at The Field Museum in Chicago Base isolation units consist of chicken Linear-motion bearings, that allow the building to move, oil dampers that absorb the forces generated by the movement of the building, and laminated rubber bearings that allow the building to return to its original position when the earthquake has ended.
After revision: Base isolation demonstration at The Field Museum in Chicago Base isolation units consist of Linear-motion bearings, that allow the building to move, oil dampers that absorb the forces generated by the movement of the building, and laminated rubber bearings that allow the building to return to its original position when the earthquake has ended.