Zoetrope and newcomen engine: what they have in common

1. Step 1. Zoetrope — is made of — Paper. The pictures are on a paper strip.
2. Step 2. Paper — is used in — Rotary printing press. It prints on a paper web.
3. Step 3. Rotary printing press — has part — Watt steam engine. The first rotary presses were steam-driven.
4. Step 4. Watt steam engine — evolved from — Newcomen engine. Watt improved Newcomen’s engine.

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