Applied Physics

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Excerpt from Applied Physics: For Secondary Schools Physics has more points of contact with every-day life than any other one science. A bicycle rider runs into a tree and is hurt, an automobile rounds a curve too fast and Skids. In either case a policeman may step to a little box, fastened to a pole, and call an ambulance. Man with his little strength lifts great girders weighing many tons, or directs a huge steamship across an ocean, or makes a waterfall furnish him with light, heat, and power. All this is in accordance with the laws of physics. Physics has to do with matter and energy. This is the study of the laws of nature which control everything happening about us. Ignorance of the law excuses no one. Nature's laws will hold anyway and the wise man will learn to use them to his advantage. Matter. NO one knows what matter is. There is a theory that it may be made up of molecules and these in turn formed from smaller particles called atoms, which are in turn composed of smaller particles. In accordance with this theory, the symbol for water is written H20, which means that a molecule of water is made of two atoms of hydrogen and one atom of oxygen. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.