Flanged wheel and hydraulic press: what they have in common

1. Step 1. Flanged wheel — is part of — Steam locomotive. Flanged wheels keep it on the track.
2. Step 2. Steam locomotive — evolved into — Diesel locomotive. It replaced the steam locomotive.
3. Step 3. Diesel locomotive — has part — Diesel engine. The diesel turns a generator.
4. Step 4. Diesel engine — is part of — Excavator. The drive is a diesel.
5. Step 5. Excavator — has part — Hydraulic cylinder. Hydraulic cylinders move the boom and the bucket.
6. Step 6. Hydraulic cylinder — is part of — Hydraulic press. Two cylinders of different diameters.

Open Evothings