Attack of Fortified Places. Including Siege-Works, Mining, And Demolitions. Prepared for the Use of the Cadets of the United States Military Academy
The book Attack of Fortified Places. Including Siege-Works, Mining, And Demolitions. Prepared for the Use of the Cadets of the United States Military Academy was written by author Mercur, James, 1842-1896 Here you can read free online of Attack of Fortified Places. Including Siege-Works, Mining, And Demolitions. Prepared for the Use of the Cadets of the United States Military Academy book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Attack of Fortified Places. Including Siege-Works, Mining, And Demolitions. Prepared for the Use of the Cadets of the United States Military Academy a good or bad book?
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L. R. equal 4 yards is Jf (4yds.y X ii= 176 lbs. 126 ATTACK OF FORTIFIED PLACES. Representing by / the L. L. R. for a common mine requiring a charge of 3660 lbs., since the charges of com- mon mines are proportional to the cubes of their lines of least resistance, we have 176 : 3660 :: 4' : /' = 1330-8, whence /=ii>; (II)' =1331. To find from these data the relations between charges for overcharged mines, construct Figs. 2 and 2a, (PI. XL) Fig. (2) gives mines with crater radii of 4* and 12* an...d a common L. L. R. of 4'. Divide the distance between A and B into four equal parts, and assume the points of division as the extremities of the crater radii of overcharged mines, each of which exceeds the one next smaller by \AB, and all corre- sponding to a L. L. R. of 4^. Fig. {2d) gives common mines with lines of least re- sistance of 4^ and \V. Divide the distance >4'^' also into four equal parts, and assume the points of division as the extremities of the crater radii of common mines each of which exceeds the one next smaller by \A'B' .
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