Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 68
the corners, ab and cd, Fig.67, thus making triangles, whichcannot change their angles andFig. 67. retain the same length of sides. Such braces should be placed across all corners, whenever possible. 205. The brace acts sometimes by its elasticity of trac-tion and sometimes by its elasticity of… … MECHANICS OF LIQUIDS. 59 A B is the beam to carry the load.Timbers AD and BE are firmlybolted to its ends, and the upperends of these timbers are connectedby a beam DE. DC and EF are tierods holding the beam AB to DE.Fig. 68. If now a load be placed anywhere upon AB, the principal part of that load…
Physics
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