Mercator projection und CNC-Maschine: was sie gemeinsam haben

1. Schritt 1. Mercator projection — nutzt — Gutenberg printing press. Maps were printed in large numbers.
2. Schritt 2. Gutenberg printing press — funktioniert wie — Jacquard loom. An analogy, not proven influence: both set type and a chain of punched cards are a replaceable pattern that a machine reproduces over and over.
3. Schritt 3. Jacquard loom — nutzt — Program control of a machine. The chain of cards is the program of the pattern.
4. Schritt 4. Program control of a machine — wird verwendet in — CNC-Maschine. The tool’s movement is set by a program — at first on punched tape.

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