Civilization manualBook 1: From Bare Hands to Steam and Electricity765 entries · 23 phases · 100 years
The Island
Phase 14 — Electricity, generators, motors and batteries  /  About year 45
14.46

Tungsten-filament lamp

three times the light of the carbon lamp for the same current, and far longer life

MakingYear 45Stands on 273 earlier

AWhat it needs

Needs 273 other products in all, 3 of them directly.

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