Rotor y barril: qué tienen en común
- Paso 1. Rotor — forma parte de — Generador eléctrico. The rotating part with a magnetic field.
- Paso 2. Generador eléctrico — forma parte de — Central eléctrica. Generators produce the current.
- Paso 3. Central eléctrica — está hecho de — Ladrillo. The buildings of the first power stations were brick.
- Paso 4. Ladrillo — es material para — Arco. Arches were built of brick or stone.
- Paso 5. Arco — funciona como — Barril. Staves squeezed by hoops hold their shape by the same compression as the stones of an arch.