Stainless steel and jacquard loom: what they have in common

1. Step 1. Stainless steel — is material for — Fountain pen. The nib of a modern fountain pen is stainless steel.
2. Step 2. Fountain pen — uses — Ink. Ink.
3. Step 3. Ink — is used in — Gutenberg printing press. An impression needs ink; Gutenberg used an oil-based one.
4. Step 4. Gutenberg printing press — works like — 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.

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