The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 12
the blow increaseswith the height from which it falls. For example, the distance a xmeasured on the horizontal scale will be ti-l tons, the force withwhich a ram weighing one ton strikes when it has fallen from a heightof 2S feet. The peculiar curve here shown is the result of that lawby which the… … as the square of the heights, a supposition which, erroneous as it is,has been entertained by some persons, the law of the forces would beexpressed by a curve of an entirely ditferent nature from the true one,namely by the curves c c, according to which, if e i were the force fora height of 5 feet,…
Architecture · Civil engineering · Science
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