Lantern crane (final phase)
The animation shows the techniques employed in the project's final phase. The construction of the cone shape lantern's spire and the placement of the sphere on top of the Dome. The latter operation was extremely difficult owing to the size and the weight of the sphere. It was performed by Verrocchio in 1472 in the presence of an exceptional witness, the young Leonardo da Vinci.
Last update 26/gen/2008