كتب مقدمة في العلم
اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
مقدمة في العلم (كتاب)
Book digitized by Google from the library of University of California and uploaded to the Internet Archive by user tpb.
494 pages : 19 cm
“The aim of this book is to start young high school pupils on scientific projects” – Preface
Includes index
Heat -- Temperature and heat -- Common phenomena due to heat -- Burning or oxidation -- Food -- Cooking and its effect on food -- The digestion of food -- Food substitutes and adulterants -- Bacteria and food. How to keep food wholesome -- Fuels -- Clothes and how they protect us -- Household chemicals -- Baking powders and soda -- Yeast and bread making -- Bleaching, blueing, starching -- Dyes -- Metals used in the home -- Oils, paints, and varnishes -- Nitrogen and its relation to plants -- Drugs and patent medicines -- How to keep well without drugs and patent medicines -- Simple electric devices -- Modern electrical inventions -- Magnets and currents -- How electricity is obtained on a large scale -- Light: refraction -- Photography and the chemical action of light -- Color -- Artificial lighting -- Sound -- How machines lighten labor -- The power behind the engine -- Pumps, and their value to man -- The water problem of a large city -- Water makes a garden of the desert -- The work of running water -- Air -- The work of the atmosphere -- Climate -- Mountains, earthquakes, volcanoes, geysers -- The rocks and building stones of the earth -- Plants and their relation to man -- The animals of the Earth
