Technologies
Each entry explains a technology, the problems it solves and its connections.
Filters: earliest – -3001Clear
Lime burning
Archaeological evidence of lime burning dates to around 10000 BCE · matureEnergy · Industry · MaterialsControlled heating of calcareous rock produces reactive lime, transforming natural rock into a workable raw material for binders.
Control of fire
Archaeological evidence of controlled fire use appears from about 1 million years ago · matureEnergy · MaterialsIgniting, sustaining, regulating, and using flames turns combustion in the environment into a repeatable source of heat.
Metal smelting
Early metal smelting appeared from around 5000 BCE; large-scale furnace workshops emerged in the Bronze Age · matureEnergy · Industry · MaterialsExtracts metals from ores using controlled high temperatures and a reducing environment, then produces usable materials through melting, casting, or forging.