Fork tines and screw press: what they have in common
- Step 1. Fork tines — is part of — Fork. Three to four tines.
- Step 2. Fork — is made of — Stainless steel. Stainless steel.
- Step 3. Stainless steel — is material for — Fountain pen. The nib of a modern fountain pen is stainless steel.
- Step 4. Fountain pen — uses — Ink. Ink.
- Step 5. Ink — is used in — Gutenberg printing press. An impression needs ink; Gutenberg used an oil-based one.
- Step 6. Gutenberg printing press — has part — Screw press. Gutenberg adapted the screw press known from pressing grapes.