Autoclave and gutenberg printing press: what they have in common

1. Step 1. Autoclave — works like — Pressure cooker. Papin’s digester was the prototype of the autoclave.
2. Step 2. Pressure cooker — inspired — Newcomen engine. Papin’s experiments with steam and a piston preceded Newcomen’s engine.
3. Step 3. Newcomen engine — evolved into — Watt steam engine. Watt improved Newcomen’s engine.
4. Step 4. Watt steam engine — is part of — Rotary printing press. The first rotary presses were steam-driven.
5. Step 5. Rotary printing press — evolved from — Gutenberg printing press. Cylinders instead of a flat press.

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