Internal Combustion Engines

Abstract

There are six primary sources of power in agriculture: human labor, domestic animals, wind, flowing water, electricity, and heat engines. The primary sources of power for modern agriculture are the internal combustion engine and electric motor. Some day, the primary source of power may change to fuel cells, solar energy, or atomic energy, but in the immediate future the primary sources of power for agriculture will continue to be internal combustion heat engines and electric motors.