Civilization manualBook 1: From Bare Hands to Steam and Electricity765 entries · 23 phases · 100 years
The Island
Phase 21 — Microphone, speaker, magnetic tape and the telephone exchange  /  About year 74
21.21

Cine camera, projector and sound film

moving pictures on a strip of film, with the sound printed beside them

KnowledgeYear 74Stands on 302 earlier

AWhat it needs

Needs 302 other products in all, 6 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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