The Sacramento City College course “MET 256 - Fundamentals of Instruments and Electricity” covers essential concepts in electrical engineering, including the principles of instruments and electricity. It provides detailed explanations of topics such as AC and DC motors, conductors, insulators, and electron flow. The course materials are designed to support students in understanding and applying these fundamental concepts in practical scenarios.

The Four Social Revolutions refers to the indentification of social change through modes of subsitance. Examines hunter-gatherers, pastoral, horticultura, agrarian, industrial, and post-industrial.