The elements of navigation : containing the theory and practice, with all the necessary tables, to which is added, a treatise of marine fortification ... (1754)
Robertson, J. (John), 1712-1776, Adams, Charles Francis, 1807-1886, former owner. BRL, Adams, John, 1735-1826, former owner. BRL, Boston Public Library) John Adams Library BRL · London : Printed for J. Nourse ... · leaf 156
— 2 c b. Lines drawn from e thro b and by cut the primitive circle in a% </;then bifect the arc a din p. A ruler by e zndp cuts the diameter b b in p, the pole fought.The truth of this conftruction is evident from the laft. 458. PROBLEM X. Thro any point In the plane ofprojecllon, or primitive… … Let the given point be a, thro which a circle is tobe defcribed to cut a given great circle bdc, whofepole is p, in an angle equal to a propofed number ofdegrees. General Solution. About the given point (a)as a pole, defcribe a great circle egf. (442) About (r) the pole of the given circle bdc,…
Navigation · Nautical astronomy · Fortification
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-145-81.webp)
