The New Practical Navigator: Being a Complete Epitome of Navigation: to which are Added, All the Tables Requisite for Determining the Latitude and Longitude at Sea: Containing the Different Kinds of Sailing, and Necessary Corrections for Lee-way, Variation, &c. Exemplified in a Journal at Sea ... The Whole Illustrated with Engravings ...J. Johnson, 1807 - 328 sider |
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Resultat 1-5 av 26
Side 17
... Suppose the number 22 were required , the first figure be- ing 2 , I take the divifion to the figure 2 , and for the 2d figure 2 , count 2 tenths onwards , and that is the point reprefenting 22 . Again , Suppofe 1728 were required ; for ...
... Suppose the number 22 were required , the first figure be- ing 2 , I take the divifion to the figure 2 , and for the 2d figure 2 , count 2 tenths onwards , and that is the point reprefenting 22 . Again , Suppofe 1728 were required ; for ...
Side 15
... Suppose the number 22 were required , the first figure be- ing 2 , I take the divifion to the figure 2 , and for the 2d figure 2 , count 2 tenths onwards , and that is the point reprefenting 22 . Again , Suppofe 1728 were required ; for ...
... Suppose the number 22 were required , the first figure be- ing 2 , I take the divifion to the figure 2 , and for the 2d figure 2 , count 2 tenths onwards , and that is the point reprefenting 22 . Again , Suppofe 1728 were required ; for ...
Side 21
... suppose you would find the number to the logarithm 4.59632 . 4.59632 4.59527 The neareft next log . I can find is 59627 its num . 39470 The next greater ditto is 5 · Difference 59638 = II 39480 10 Then fay , 11 : 10 :: 5 : 5 nearly the ...
... suppose you would find the number to the logarithm 4.59632 . 4.59632 4.59527 The neareft next log . I can find is 59627 its num . 39470 The next greater ditto is 5 · Difference 59638 = II 39480 10 Then fay , 11 : 10 :: 5 : 5 nearly the ...
Side 59
... Suppose a ship fails 488 miles , between the fouth and the eaft , from a port in 2 ° 52 ' fouth latitude , and then by obfervation is in 7 ° 23 ′ fouth latitude ; what course has she steered , and what depar- ture has the made ? From ...
... Suppose a ship fails 488 miles , between the fouth and the eaft , from a port in 2 ° 52 ' fouth latitude , and then by obfervation is in 7 ° 23 ′ fouth latitude ; what course has she steered , and what depar- ture has the made ? From ...
Side 65
... nearly ftanding together under 15 ° and againft dift . 27. Hence the courfe made good upon the feveral courfes is S. 15 ° W , and the dift 27 miles . I EXAMPLE EXAMPLE I. Suppose a ship takes her departure from the TRAVERSE SAILING . 65.
... nearly ftanding together under 15 ° and againft dift . 27. Hence the courfe made good upon the feveral courfes is S. 15 ° W , and the dift 27 miles . I EXAMPLE EXAMPLE I. Suppose a ship takes her departure from the TRAVERSE SAILING . 65.
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The New Practical Navigator: Being a Complete Epitome of Navigation: To ... John Hamilton Moore Ingen forhåndsvisning tilgjengelig - 2015 |
The New Practical Navigator: Being a Complete Epitome of Navigation: To ... John Hamilton Moore Ingen forhåndsvisning tilgjengelig - 2015 |
Vanlige uttrykk og setninger
againſt alfo anchor Anfwer angle apparent altitude arch bafe baſe bearing cable cafe centre chord Co-fecant Co-fine Co-tang coaft column compaffes courfe courſe declination defcribe degrees departure diff difference of latitude difference of longitude Dift Dep Dift Lat diftance divifion draw eaft Epact equal extent will reach faid fails fame fathoms fcale fecond fhews fhip fhip's fhore fhould fide firft firſt fituation fome fouth fquare ftands ftar ftar's ftation fteer fubtract fuch fun's Funchal furface given Greenwich haul hypothenufe interfections laft lefs line of numbers logarithm maft meaſured meridian meridian altitude miles moon moon's muſt neareſt noon obferved oppofite parallax parallel perpendicular Plane Sailing quadrant radius reprefent right afcenfion right line rope Sailing Secant ſhip Sine ſtar Suppofe Tangent thefe theſe thofe thoſe triangle true uſed weft wind yards
Populære avsnitt
Side 16 - EXAMPLE. If the diameter of a circle be 7 inches, and the circumference 22, what is the circumference of another circle, the diameter of which is 14 inches ? Extend from 7 to 22, that extent will reach from 14 to 44 the same way.
Side 34 - Horizon decreafes ; confequently, the latitude of a place is always equal to the elevation of the pole above the Horizon.
Side 17 - ... degrees of the quadrant, begins at the right hand against 90° on the sines, and from thence is numbered towards the left hand thus : 10, 20...
Side 10 - C, it will become a line of versed sines, which may be continued to 180°, if the same divisions be transferred on the same line on the other side of the centre C. 6thly. From the centre C, through the several divisions of the quadrant BD, draw right lines till they cut the tangent ВТ; so will the line ВТ become a line of tangents.
Side 272 - ... home, when the rammer is to be drawn, and not before. While this is doing, the man appointed to...
Side xvi - The radius of a circle is half the diameter, or it is a right line drawn from the centre to the circumference, as CD.
Side 16 - The solid content of any bale, box, chest, fcc. is found by extending from 1 to the breadth ; that extent will reach from the depth to a fourth number, and the extent from 1 to that fourth number will reach from the length to the solid content. EXAMPLE 1st.
Side 87 - ... degrees, &c. and draw lines through every 5 degrees of latitude and longitude, as in the chart. Take from the Table of Latitude and Longitude of Places, the latitude and longitude of each particular place contained within the bounds of the chart, and lay a...
Side 17 - ... 1, 2, 3, &.C. to 10, and so on 20, 30, 40, and 45, where is a brass pin under 90° on the sines ; from thence it is numbered backwards, 50, 60, 70, 80, &.C. to 89, ending at the left hand where it began at 1 degree. The subdivisions are nearly similar to those of the sines. When you have any extent in your compasses, to be set off from any number less than 45°...
Side 21 - ... the logarithm of the firft term, the remainder will be the logarithm of the fourth term. Or to the complement arithmetic of the logarithm of the firft term, add the logarithms of the fécond and third term, the fum abating radius will give the fame anfwer. As log. .. 60 .... 1.77815 Coar.