Astrolabe and paper machine: what they have in common

1. Step 1. Astrolabe — works like — Armillary sphere. Three-dimensional and flat models of the celestial sphere.
2. Step 2. Armillary sphere — has part — Wooden stand. A support with a horizon.
3. Step 3. Wooden stand — is part of — Globe. A support.
4. Step 4. Globe — is made of — Paper. The world map is glued onto the ball in paper gores.
5. Step 5. Paper — uses — Paper machine. Industrial production.

Open Evothings