Tape recorder and steam locomotive: what they have in common

1. Step 1. Tape recorder — has part — Electromagnet. Recording heads are electromagnets.
2. Step 2. Electromagnet — has part — Copper wire. A winding.
3. Step 3. Copper wire — is part of — Electric generator. Windings.
4. Step 4. Electric generator — is part of — Diesel locomotive. The generator powers the traction motors.
5. Step 5. Diesel locomotive — evolved from — Steam locomotive. It replaced the steam locomotive.

Open Evothings