Based on the numerous analyses that were performed to authenticate and restore these artefacts, we can describe them in detail and give an accurate account of the techniques used to produce them.
Inner construction of the spheres
X-rays, CT scans and 3D modelling of the resulting images made it possible to understand how the spheres were made […]
Shells and layers
Each sphere is built of two hemispheres comprising multiple thin layers made of alternating materials. These inside layers are composed of cellulosic fibres […]
Composition of the spheres
This page presents the composition of the terrestrial globe in detail, from the inside towards the outside, thanks to stratigraphic cross-sections and an analysis of the constituent materials […]
Horizon rings
The horizon rings are made of several dovetailed pieces of oak decorated with printed information […]
Stands
The horizon rings are made of several dovetailed pieces of oak decorated with printed information […]
Printing plates
To print the terrestrial globe in 1541, Mercator used copper plates for the first time. He would use copper again ten years later to make his celestial globe […]