Civilization manualBook 1: From Bare Hands to Steam and Electricity765 entries · 23 phases · 100 years
The Island
Phase 17 — The gasoline engine and the forklift  /  About year 51
17.01

Spark plug

a spark jumps a small gap inside the cylinder at the right instant

MakingYear 51Stands on 216 earlier

AWhat it needs

Needs 216 other products in all, 4 of them directly.

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Open a box to see what it needs. A dashed box is a product already drawn in full: click it to jump there. In the org chart, drag to move around.

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