Sewing pattern and router: what they have in common

1. Step 1. Sewing pattern — uses — Tailor’s tape. Measurements.
2. Step 2. Tailor’s tape — uses — Euclidean geometry. A scale is marked on the tape.
3. Step 3. Euclidean geometry — is used in — Shukhov Tower. The hyperboloid is assembled from straight bars.
4. Step 4. Shukhov Tower — has part — Antenna. A radio tower.
5. Step 5. Antenna — is part of — Router. Antennas.

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