International Space Station and steam locomotive: what they have in common

1. Step 1. International Space Station — has part — Solar panel. Solar panels.
2. Step 2. Solar panel — is a kind of — Electric generator. A solar panel also generates electricity — from light rather than rotation.
3. Step 3. Electric generator — is part of — Diesel locomotive. The generator powers the traction motors.
4. Step 4. Diesel locomotive — evolved from — Steam locomotive. It replaced the steam locomotive.

Open Evothings