The A-B-C of National Defense; What the Army And Navy Would Have to Do in War, Why They Would Have to Do It, And What They Need for Successful Performance
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In our eReader you can find the full English version of the book. Read The A-B-C of National Defense; What the Army And Navy Would Have to Do in War, Why They Would Have to Do It, And What They Need for Successful Performance Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The A-B-C of National Defense; What the Army And Navy Would Have to Do in War, Why They Would Have to Do It, And What They Need for Successful Performance
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To quickly assess the difficulty of the text, read a short excerpt:
The men who do the "aiming" are not near any of the guns. They are stationed 117 THE A-B-C OF NATIONAL DEFENSE along the coast, at opposite sides of the defenses. Their stations, carefully con- cealed, are known as "base stations ;" and a straight line drawn between them and through the defenses gives what is called the base line.
Of what is it the base? It is the base of a triangle. Now it will be obvious that when the observer at each end of that line looks at the distant ship, his line of si...ght will establish another straight line, or a leg of that triangle. Therefore, when each observer with his ingenious range-finding and direction-finding instruments has fixed the exact angle of his line, the ship will be at the apex of the triangle thus cal- culated.
That, told very crudely, is the principle on which the work of range and position- finding is founded. The exact angle once obtained, the establishment of the exact range is a mere matter of mathematics — intricate but positive, and very quickly done by modern apparatus.
What to read after The A-B-C of National Defense; What the Army And Navy Would Have to Do in War, Why They Would Have to Do It, And What They Need for Successful Performance?
You can find similar books in the "Read Also" column, or choose other free books by Muller, Julius Washington, 1867- [from Old Catalog] to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The men who do the "aiming" are not near any of the guns. They are stationed 117 THE A-B-C OF NATIONAL DEFENSE along the coast, at opposite sides of the defenses. Their stations, carefully con- cealed, are known as "base stations ;" and a straight line drawn between them and through the defenses gives what is called the base line.
Of what is it the base? It is the base of a triangle. Now it will be obvious that when the observer at each end of that line looks at the distant ship, his line of si...ght will establish another straight line, or a leg of that triangle. Therefore, when each observer with his ingenious range-finding and direction-finding instruments has fixed the exact angle of his line, the ship will be at the apex of the triangle thus cal- culated.
That, told very crudely, is the principle on which the work of range and position- finding is founded. The exact angle once obtained, the establishment of the exact range is a mere matter of mathematics — intricate but positive, and very quickly done by modern apparatus.
What to read after The A-B-C of National Defense; What the Army And Navy Would Have to Do in War, Why They Would Have to Do It, And What They Need for Successful Performance?
You can find similar books in the "Read Also" column, or choose other free books by Muller, Julius Washington, 1867- [from Old Catalog] to read onlineMoreLess
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