A set of four volumes designed to give the layman an understanding of how things work, from the simplest mechanical functions of modern life to the most basic scientific principles and complex industrial processes that affect our well-being. Volume I includes: Centrifuge, Fire Extinguishers, Dry Ice, Natural Gas, Steam Engines, Nuclear Reactor, Transformer, Fluorescent Lamp, Radar, Mirrors, Magnifying Glass, Microscope, Telescopes, Speed of Camera Lens, Colour Television, Colour Photography, Echo, Organ Pipes, Quartz Clock, Cranes, Refrigerators, Vacuum Cleaner, Sewing Machine, Typewriters, Cash Register, ... and so much more.