Churn dasher and rolling mill: what they have in common

1. Step 1. Churn dasher — is part of — Butter churn. A dasher plunger churns the cream.
2. Step 2. Butter churn — uses — Lever. A dasher.
3. Step 3. Lever — has part — Beam. A lever is a rigid beam that turns around a pivot.
4. Step 4. Beam — is part of — Overhead crane. An overhead crane runs along a beam bridge under the workshop roof.
5. Step 5. Overhead crane — is part of — Steel works. Overhead cranes.
6. Step 6. Steel works — has part — Rolling mill. Rolling mills.

Open Evothings