Parchment und micrometer: was sie gemeinsam haben

1. Schritt 1. Parchment — ist Material für — Kodex. Early codices were made of parchment.
2. Schritt 2. Kodex — wird verwendet in — Gutenberg printing press. The press printed sheets that were bound into codex books.
3. Schritt 3. Gutenberg printing press — hat als Teil — Movable type. Text is set from metal type.
4. Schritt 4. Movable type — funktioniert wie — Interchangeable parts. Movable type is an early case of interchangeable parts: identical letters move from line to line.
5. Schritt 5. Interchangeable parts — nutzt — Micrometer. Precise measurement ensures interchangeability.

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