Paperboard layer e heat pump: o que têm em comum

1. Passo 1. Paperboard layer — faz parte de — Tetra Pak. Stiffness.
2. Passo 2. Tetra Pak — é feito de — Paper. Cardboard.
3. Passo 3. Paper — é utilizado em — Rotary printing press. It prints on a paper web.
4. Passo 4. Rotary printing press — tem como parte — Watt steam engine. The first rotary presses were steam-driven.
5. Passo 5. Watt steam engine — inspirou — Thermodynamics. Carnot wrote “Reflections on the Motive Power of Fire” trying to understand steam engines.
6. Passo 6. Thermodynamics — é utilizado em — Heat pump. A heat pump moves heat from cold to warm by spending work — by the laws of thermodynamics.

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