Leonardo da Vinci designed a crane to lift heavy materials at building sites.
Leonardo’s notebooks contain studies of cranes, hoists, pulleys, and other lifting machines. These designs applied mechanical advantage to construction, allowing workers to raise loads with less force than direct lifting would require. Some concepts combined ropes, gears, counterweights, and rotating supports.
His interest in cranes was connected to architecture and civil engineering as well as military work. Renaissance building projects required reliable ways to move stone, timber, and other heavy materials, so lifting machinery was a practical engineering problem.
Leonardo did not create the first crane; ancient and medieval builders already used lifting devices. His importance lies in the detailed analysis and refinement of mechanisms, many of which he recorded through precise drawings and notes.