Size chart and radar: what they have in common

1. Step 1. Size chart — is used in — Sewing pattern. Sizes.
2. Step 2. Sewing pattern — uses — Tailor’s tape. Measurements.
3. Step 3. Tailor’s tape — uses — Euclidean geometry. A scale is marked on the tape.
4. Step 4. Euclidean geometry — is used in — Shukhov Tower. The hyperboloid is assembled from straight bars.
5. Step 5. Shukhov Tower — has part — Antenna. A radio tower.
6. Step 6. Antenna — is part of — Radar. An antenna emits and receives.

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