This book gives an easy-to-understand explanation of how telephones, televisions, and toliets work. The book is written for children, but adults can benefit from reading this book as well (I often understand a subject better by reading a "children's" book on the subject). The book contains some cartoonish illustrations that make the explantions less dry and there are also several diagrams that make the technical knowledge...
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Someone calls this an "odd combination," why, what child isn't fascinated by toilets? The book offers excellent, non-technical explanations for kids with enough detail to keep things interesting. For example, the telephone section (15 pages) mentions sound waves, diaphragms, and radio waves; the television section concisely explains the mixing of color light waves, as well as the transmitter, the antenna, and cable TV, and...
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