Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 66
The size is determined bycrushing a small cube of the substance, and from theweight employed, determining by simple proportion thesize necessary to sustain the structure. To insure safety,the foundation should be three times the size calculated. 193. The second Method is illustrated by a rope… … better than the first, and should be used wherever possible. 194. The most common way of applying a load to abeam is by a transverse strain. The first result of such astress is to bend the sustaining beam. Fig. 60. The mole-cules (represented by thecircles) on the side to-wards the load L appliedto…
Physics
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