Another passive process is osmosis. This is the process by which water crosses a cell membrane either into or out of the cell, but always into the solution that has the higher total concentration of solutes. Dr Aziz.
The flying buttress is the defining external characteristic of gothic architecture. These buttresses act to spread the weight of the tall walls. They support the structure by transferring force directly to the ground. The flying buttress was not just practical, though.
Historical Examples. 1  They looked from the windows of the hospital, and from the roofs of houses. 2  How carefully I packed my pipe, gazing serenely over the roofs of Paris. 3  Gargoyles at the foot of the flying buttresses carried off the water from the roofs. 4  If they fall upon houses, the roofs are crushed by the weight.