A new and complete dictionary of arts and sciences : comprehending all the branches of useful knowledge, with accurate descriptions as well of the various machines, instruments, tools, figures, and schemes necessary for illustrating them, as of the classes, kinds, preparations, and uses of natural productions, whether animals, vegetables, minerals, fossils, or fluids : together with the kingdoms, provinces, cities, towns, and other remarkable places throughout the world : illustrated with above three hundred copper-plates, engraved by Mr. Jefferys, geographer to His Majesty : the whole extracted from the best authors in all languages (1763)
Society of Arts (Great Britain). Society of Gentlemen, Jefferys, Thomas, d. 1771, Grignion, Charles, 1721-1810, Wale, Samuel, d. 1786, Owen, W. (William), d. 1793 · London : Printed for W. Owen, at Homer's Head, in Fleet-Street · leaf 955
afhip, hen it not only leffens or augmentsher velocity, but gives her a new di-rection compounded of the courfe (liefleer?, an! the letting ot the current.Suppofe a (hip fails by the compafs di-rectly fcutli, 96 miles in 24 hours, in acurrent that fets ealt 45 miles in thefame time. Required the… … Then C will be the (hips true place,AC her true diltance, and the angleCAD the true courfe. To find which,trigonometrically lay, As AD the ap-parent diftance is to DC, the currentsmotion, fo is the radius to the tangentof the true courfe DAC. Consequentlyihe (hips true courfe in the prefent…
Art · Science
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