Flexible measuring tape and elevator: what they have in common

1. Step 1. Flexible measuring tape — is part of — Tailor’s tape. A fibreglass tape.
2. Step 2. Tailor’s tape — uses — Euclidean geometry. A scale is marked on the tape.
3. Step 3. Euclidean geometry — is used in — Geodesic dome. The sphere is divided into triangles.
4. Step 4. Geodesic dome — has part — Truss. A triangular grid.
5. Step 5. Truss — is part of — Eiffel Tower. Lattice trusses.
6. Step 6. Eiffel Tower — has part — Elevator. Lifts.

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