Neon sign e gutenberg printing press: o que têm em comum

1. Passo 1. Neon sign — tem como parte — Transformer. A high-voltage transformer.
2. Passo 2. Transformer — faz parte de — Nuclear power plant. Transformers step up the voltage so the plant's power can travel far.
3. Passo 3. Nuclear power plant — tem como parte — Steam turbine. Steam turns the turbines — as at a thermal station.
4. Passo 4. Steam turbine — evoluiu de — Watt steam engine. The turbine replaced piston engines in large installations.
5. Passo 5. Watt steam engine — faz parte de — Rotary printing press. The first rotary presses were steam-driven.
6. Passo 6. Rotary printing press — evoluiu de — Gutenberg printing press. Cylinders instead of a flat press.

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