Motorway and bell: what they have in common

1. Step 1. Motorway — is made of — Concrete. The roadway is concrete.
2. Step 2. Concrete — is material for — Tuned mass damper. Or concrete.
3. Step 3. Tuned mass damper — uses — Pendulum. A pendulum.
4. Step 4. Pendulum — is part of — Tower clock. A pendulum (since the 17th century).
5. Step 5. Tower clock — has part — Bell. The chime of the clock.

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