Doubling the length of a board- or timber reduces the stiffness eight-fold and tha * strength one-half. Doubling the widfli of 1 a board doubles the stiffness and strength. s Doubling the tMckness of a board or uhe r depth of a timber increases the stiffness * about eight-fold and the strength four-fold. " If, therefore, it is desired to double the » length and retain the same .stiffness, it is necessary to double the thickness or depth. B . • 2 "'■ ■ T ' s c 1 i ■•■'•.- ' . - ■
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Bibliographic details
Star (Christchurch), Issue 6551, 31 July 1899, Page 3
Word Count
81Page 3 Advertisements Column 1 Star (Christchurch), Issue 6551, 31 July 1899, Page 3
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