Tensile structure and gutenberg printing press: what they have in common

1. Step 1. Tensile structure — works like — Sail. Stretched fabric working in tension.
2. Step 2. Sail — is part of — Sailing ship. Sails drive the ship.
3. Step 3. Sailing ship — uses — Mercator projection. Navigating along straight rhumb lines.
4. Step 4. Mercator projection — uses — Gutenberg printing press. Maps were printed in large numbers.

Open Evothings