Condensador de Liebig e mechanical clock: o que têm em comum

1. Passo 1. Condensador de Liebig — utiliza — Heat transfer. Cooling with water.
2. Passo 2. Heat transfer — é utilizado em — Heat shield. It protects by carrying heat away with a vaporizing layer.
3. Passo 3. Heat shield — faz parte de — Space Shuttle. Heat-shield tiles.
4. Passo 4. Space Shuttle — é feito de — Silica (sand). The heat-shield tiles are silica fibre.
5. Passo 5. Silica (sand) — é material para — Quartz clock. The resonator is a quartz crystal.
6. Passo 6. Quartz clock — evoluiu de — Mechanical clock. Quartz clocks replaced mechanical ones: a vibrating quartz crystal took the place of the pendulum and balance.

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