Before revision: By having only the suction cups that are in direct contact of the object to exhibit suction force, the researchers were able to minimize leak points where air could enter and increase the pressure that each active cup receives, maximizing the suction force.
After revision: By having only the suction cups that are in direct contact of the object exhibit suction force, the researchers were able to minimize leak points where air could enter and increase the pressure that each active cup receives, maximizing the suction force.