Porta-aviões e screw press: o que têm em comum

1. Passo 1. Porta-aviões — evoluiu de — Couraçado. The first aircraft carriers were converted from battleships and cruisers.
2. Passo 2. Couraçado — tem como parte — Watt steam engine. Steam engines.
3. Passo 3. Watt steam engine — faz parte de — Rotary printing press. The first rotary presses were steam-driven.
4. Passo 4. Rotary printing press — evoluiu de — Gutenberg printing press. Cylinders instead of a flat press.
5. Passo 5. Gutenberg printing press — tem como parte — Screw press. Gutenberg adapted the screw press known from pressing grapes.

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