Interchange and kite: what they have in common

1. Step 1. Interchange — has part — Bridge. Flyovers.
2. Step 2. Bridge — includes — Truss bridge. A bridge.
3. Step 3. Truss bridge — has part — Truss. Trusses.
4. Step 4. Truss — is part of — Space frame. Space trusses.
5. Step 5. Space frame — evolved from — Kite. Bell came up with the structure while building tetrahedral kites.

Open Evothings