Newspaper pages and screw press: what they have in common

1. Step 1. Newspaper pages — is part of — Newspaper. Folded sheets.
2. Step 2. Newspaper — uses — Rotary printing press. Mass print runs.
3. Step 3. Rotary printing press — evolved from — Gutenberg printing press. Cylinders instead of a flat press.
4. Step 4. Gutenberg printing press — has part — Screw press. Gutenberg adapted the screw press known from pressing grapes.

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