The Theory and Practice of Finding the Longitude at Sea Or Land: To which are Added, Various Methods of Determining the Latitude of a Place, and Variation of the Compass; with New Tables. By Andrew Mackay, ...J. Sewell, P. Elmsly, and J. Evans, 1793 |
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Σελίδα viii
... fame fet of obfervations - for which the author had the honour of receiving the thanks of the Board of Longitude . Book fourth contains various methods of finding the longitude of a place , fome of which , though fcarcely prac- ticable ...
... fame fet of obfervations - for which the author had the honour of receiving the thanks of the Board of Longitude . Book fourth contains various methods of finding the longitude of a place , fome of which , though fcarcely prac- ticable ...
Σελίδα x
... fame the - + L. 2 . fame time , the an obfervation arc fecond arc first O F THE FIRST VOLUM E. BOOK I. In which To reduce the true altitude of the Sun to its appa-
... fame the - + L. 2 . fame time , the an obfervation arc fecond arc first O F THE FIRST VOLUM E. BOOK I. In which To reduce the true altitude of the Sun to its appa-
Σελίδα 2
... fame in all places of the Earth , by lemma 1ft ; but it is found to be variable , and in fuch a manner , that the difference of the meridian altitudes of the fame ftar is proportional to the intercepted arch of a meridian ; that meri ...
... fame in all places of the Earth , by lemma 1ft ; but it is found to be variable , and in fuch a manner , that the difference of the meridian altitudes of the fame ftar is proportional to the intercepted arch of a meridian ; that meri ...
Σελίδα 3
... fame laws , and revolving round the fun in the fame manner as the other plan- ets - therefore , by analogy , the Earth must also be globular . Although it appears from the foregoing proofs , that the earth is of a spherical figure , yet ...
... fame laws , and revolving round the fun in the fame manner as the other plan- ets - therefore , by analogy , the Earth must also be globular . Although it appears from the foregoing proofs , that the earth is of a spherical figure , yet ...
Σελίδα 4
... fame star gives the correfpondent celeftial arc . Now , As the celeftial arc Is to one degree , Sois the interval between the two parallels deduced from menfuration To the length of a degree in the fame measure . --- In the year 1756 ...
... fame star gives the correfpondent celeftial arc . Now , As the celeftial arc Is to one degree , Sois the interval between the two parallels deduced from menfuration To the length of a degree in the fame measure . --- In the year 1756 ...
Άλλες εκδόσεις - Προβολή όλων
The Theory and Practice of Finding the Longitude at Sea Or Land: To Which ... Andrew MacKay Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
The Theory And Practice Of Finding The Longitude At Sea Or Land Andrew MacKay Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
Συχνά εμφανιζόμενοι όροι και φράσεις
Aberdeen add the log adjuſtment alfo alſo anfwering angle apparent altitude apparent diſtance arc fecond arc firft arch Arcturus arifing azimuth becauſe cafe co-fecant co-fine co-tangent Co-verfed computing correction correfponding courſe degrees Diff dift divifion Earth ecliptic emerfion equal altitudes equation error fame fecant feen femidiameter fextant fhip fhould figns fince finding the Longitude firſt Fixed Star folar ftar fubtract given glaſs greateſt Greenwich half Hence horizon glafs horizontal parallax increaſe inftrument interfection interval laſt latitude lefs limb logarithm mean meaſured meridian method Moon moſt motion muſt Nautical Almanac neareſt neceffary nonagefimal noon obferved altitude object Obliq paffing place of obfervation planet pofition purpoſe quadrant reduced Reduced latitude refraction Rifing ſhip ſtar Sun's right afcenfion tangent teleſcope thefe theſe tion tranfit true altitude true diſtance true longitude tude uſed variation Verfed Verfed fine watch weft zenith diſtance ΙΟ