How it Works / Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use

A practical guide explains the physical principles behind many common machines and devices, using accessible language and clear diagrams. It surveys steam and boiler technology, reciprocating and turbine engines, and internal-combustion motors, then turns to electrical phenomena and apparatus including telegraphy, telephony, wireless transmission, dynamos, motors, and lighting. Railway practice is addressed through descriptions of brakes and signalling, and optical instruments are treated from lenses to microscopes and telescopes. Chapters on acoustics and musical instruments examine sound production and reception, while comparative notes relate certain organs of the body to mechanical analogues to aid understanding.