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Mining

How to Escape From the Iron Age?

We cannot lower carbon emissions if we keep producing steel with fossil fuels.

The Mechanical Transmission of Power (2): Jerker Line Systems

Jerker line systems can be used to operate water pumps or sawing machines, to forge iron, to process food or fibres, or to make paper.

The Mechanical Transmission of Power (1): Stangenkunst

Long-distance power transmission predates the invention of electricity by almost four centuries.

Aerial Ropeways: Automatic Cargo Transport for a Bargain

Cargo tramways can be fully or partly powered by gravity, and some deliver excess power that can be utilized to generate electricity or to drive cranes or machinery in nearby factories

How much energy does it take (on average) to produce 1 kilogram of the following materials?

Wood, steel, aluminium, iron, glass, paper, plastics, copper, silicon, nickel, titanium, electronic grade silicon.