Final answer:
Mobiles by Alexander Calder, unlike Lazlo Moholy-Nagy's work, move due to natural air currents instead of mechanical mechanisms. Calder's engineering skills enabled him to create balanced kinetic art responsive to its environment.
Step-by-step explanation:
Lazlo Moholy-Nagy's work in kinetic art, particularly Light Prop for an Electric Stage, is an exercise in mechanized movement through the use of technology. Unlike Moholy-Nagy's work, Alexander Calder's mobiles move due to air currents and not from artificial mechanical mechanisms. Mobiles are a form of kinetic art that originated by Calder, consisting of suspended forms that respond delicately to the natural flow of air, creating a dynamic and ever-changing artistic experience. Calder's engineering background allowed him to carefully balance these sculptures, which interacted harmoniously with their environment.
Mechanical mechanisms in kinetic art often involve the use of electricity, battery, or motorized parts, while Calder's mobiles rely solely on natural forces, specifically wind and gravity, for their movement. This distinction characterizes the difference between sculptural kinetic art driven by technology and that which is powered by the invisible forces of the natural world.