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

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"How It Works" by Archibald Williams is a scientific publication written in the early 20th century. The work aims to explain the fundamental principles behind various physical phenomena and mechanisms encountered in daily life, such as steam, electricity, and sound, using simple language that caters to an audience without an in-depth technical background.

Summary from Project Gutenberg.

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