单词 | velic point |
释义 | > as lemmasvelic point Designating the centre of gravity of the single sail which would in theory be required in order to propel a vessel with the same force as that provided by all of its sails. Only in centre velic, point velic, velic centre, velic point. ΚΠ 1776 H. Watson tr. L. Euler Compl. Theory Vessels iii. ii. 72 The Situation and Dimension of each of the Actual Sails being known, we may from the Principles of Staticks determine the true Place of the Centre Velique [Fr. centre velique]. 1795 Crit. Rev. 12 App. 495 The law of the resistance of fluids, that of steadiness, obedience to the rudder, the velic point, or the point where the masts are placed with most effect, the copper sheathing, ballast, &c. are the subjects of different articles. 1803 tr. J. Bossut Gen. Hist. Math. 452 He [sc. Bouguer] examines the best position for the masts, the extent that should be given to the sails, and the various motions of rolling and pitching that may take place, according to the changes of the velic point, that is, the point in which we may conceive all the effort of the wind upon the sails to be united. 1823 G. Crabb Universal Technol. Dict. at Centre of motion The velic centre, or the velic point, is the centre of gravity of an equivalent sail. 1849 J. Weale Rudim. Dict. Terms Archit. 93/1 Centre-velic or Velic-point, the centre of gravity of an equivalent sail. 1872 P. R. Marett Yachts & Yacht Building (ed. 2) 93 We must now determine the ‘point-velique’ of the model. < as lemmas |
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