The builder's dictionary, or, Gentleman and architect's companion : explaining not only the terms of art in all the several parts of architecture, but also containing the theory and practice of the various branches thereof ... : also necessary problems in arithmetic, geometry, mechanics, perspective, hydraulics, and other mathematical sciences : together with the quantities proportions, and prices of all kinds of materials used in building ... (1734)
Toms, W. H. (William Henry), ca. 1700-ca. 1750, Devoto, John, fl. 1719-1752 · London : Printed for A. Bettesworth and C. Hitch ..., and S. Austen ... · leaf 442
double ofthree, whofe Square is nine :So that 10 is to 20 in a fub-duple Ratio of 36 to 9. The fame is meant, when wefay, that the Number o^ Vibra-tions of Pendulums in a givenTime, is in a reciprocal Ratioof their Lengths. VIBRATION is the circu-lar Motion of a Body, as B or 0fwingingj on a Line,… … A is called the Center of re-ciprocal Motion, becaufe whenthe Pendulum A D is movedfrom the Point of Reft D to C,it moves about that Point A toreturn to D, firft on the oneSide, and then on the other,until by its own Gravity, it C c 4 ceaies V I V I ccafes Its Motion, and remainsin D the Point of…
Architecture · Building
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