De qué está hecho faro
A tower with a fire for navigation; the Lighthouse of Alexandria.
- Lighthouse tower — tiene como parte. A tall base for the light source.
- Fresnel lens — tiene como parte. A stepped lens gathers the light into a beam.
- Lighthouse lamp — tiene como parte. The lamp: oil, kerosene, then electricity.
- Rotation mechanism — tiene como parte. It rotates the optics, setting the flash pattern.
- Combustión — utiliza. Ancient lighthouses shone with fire.
- Piedra — está hecho de. The Lighthouse of Alexandria was a stone tower.