United States Bureau of Naval Personnel

'Basic Machines and How They Work'

Bog | Engelsk

Only elementary math skills are needed to follow this instructive manual, which covers many familiar machines and their components, including levers, block and tackle, and the inclined plane and wedge, in addition to hydrostatic and hydraulic machines, in

'Basic Electricity'

Bog | Engelsk

Originally a training course text, this book now offers the best nontechnical coverage of the basic theory of electricity and its application. Topics include batteries, circuits, conductors, AC and DC, inductance and capacitance, generators, motors, trans