Concrete tetrapods e laser: o que têm em comum

1. Passo 1. Concrete tetrapods — faz parte de — Quebra-mar. Tetrapods dissipate the energy of the waves.
2. Passo 2. Quebra-mar — faz parte de — Seaport. A breakwater.
3. Passo 3. Seaport — utiliza — Sailing ship. A port receives ships.
4. Passo 4. Sailing ship — tem como parte — Sextant. The sextant and chronometer were a sailing ship’s navigation kit for finding latitude and longitude.
5. Passo 5. Sextant — tem como parte — Mirror. Mirrors — the principle of double reflection.
6. Passo 6. Mirror — faz parte de — Laser. A resonator made of mirrors.

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