The Navigator's Assistant: Containing the Theory and Practice of Navigation, with All the Tables Requisite for Determining a Ship's Place at SeaT. Longman; T. Cadell; and J. Sewell, 1784 - 222 sider |
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Resultat 1-5 av 99
Side 31
... of the per- pendicular , namely B p , or the part of B F cut off between B , and the parallel line bp paffing through b . ( Theo . 5. fect . 1. ) And , As any multiple of Bd is to any other multiple of B á , fo is the equal multiple of B n ...
... of the per- pendicular , namely B p , or the part of B F cut off between B , and the parallel line bp paffing through b . ( Theo . 5. fect . 1. ) And , As any multiple of Bd is to any other multiple of B á , fo is the equal multiple of B n ...
Side 52
... n , draw the lines Cg , An , interfecting each other in B. ABC will be the triangle required .. The lengths of AB , CD , may be known by applying them to the fcale of equal parts ; and the measure of the angle A may be found by ...
... n , draw the lines Cg , An , interfecting each other in B. ABC will be the triangle required .. The lengths of AB , CD , may be known by applying them to the fcale of equal parts ; and the measure of the angle A may be found by ...
Side 71
... of any place is a North and South line , which divides the horizon into two equal parts ; and a diameter of the horizon at right angles to the meridian , ( which does not fenfibly differ from the parallel of latitude of the place ) is ...
... of any place is a North and South line , which divides the horizon into two equal parts ; and a diameter of the horizon at right angles to the meridian , ( which does not fenfibly differ from the parallel of latitude of the place ) is ...
Side 80
... OF THE WINDS . A WIND is a body of air in motion , and takes its name from the point of the compafs from whence it blows . That ... N. , W . and S. W. so that the butward bound Eaft India fhips generally run down their East- outward ( 80 ) `
... OF THE WINDS . A WIND is a body of air in motion , and takes its name from the point of the compafs from whence it blows . That ... N. , W . and S. W. so that the butward bound Eaft India fhips generally run down their East- outward ( 80 ) `
Side 81
... of 369 South . Beyond the Northern limit of the general wind in the At- lantic ocean , the Wefterly winds prevail ... N. and the N. E. trade wind ceases at the 5th degree N. In the intermediate space are found calms , with rain , and ...
... of 369 South . Beyond the Northern limit of the general wind in the At- lantic ocean , the Wefterly winds prevail ... N. and the N. E. trade wind ceases at the 5th degree N. In the intermediate space are found calms , with rain , and ...
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The Navigator's Assistant: Containing the Theory and Practice of Navigation ... William Nicholson Uten tilgangsbegrensning - 1784 |
The Navigator's Assistant: Containing the Theory and Practice of Navigation ... William Nicholson Ingen forhåndsvisning tilgjengelig - 2017 |
The Navigator's Assistant: Containing the Theory and Practice of Navigation ... William Nicholson Ingen forhåndsvisning tilgjengelig - 2016 |
Vanlige uttrykk og setninger
Afia Afia India Africa altitude Archipelago azimuth Baltic Sea becauſe Co-fecant Secant Co-fine Co-tang coaft compafs Computation confequently Conftruction correfponding courfe courſe defcribe Demonftration departure diff difference of latitude difference of longitude Dift Dep Dift Lat diftance divifion draw earth England equal faid failing fcale fecond fhall fhip fide firft firſt fituation fmall fome fouth fubtracted fun's fuppofed Germ Greenland Gunter's horizon Indian Ocean interfecting itſelf lefs likewife line of numbers logarithm MD MD MD meaſured meridian middle latitude miles moon moon's muſt N.Cof N.fine neceffary North Ocean obfervation Ocean 13 Ocean Atl Ocean Pacif oppofite Pacif Parallel Sailing perpendicular plane Plane Sailing pofition purpoſe quadrant quantity radius reafon refpectively rhumb right angles right line Secant Sine taken Tangent thefe theo THEOREM theſe thoſe thro triangle uſed Weft whofe wind ΙΟ
Populære avsnitt
Side 186 - Logarithm fubtraet the Logarithm Ratio, the Remainder will be the Logarithm of a Natural Number, which, being found in...
Side xvi - X 6 = 3 x 4 = 12. And hence, if the product of the two means be divided by one of the extremes, the quotient will give the other extreme. So, of the above numbers, the product of the means 12...
Side 8 - A plane figure bounded by a curved line every point of which is equally distant from a point within is called a circle ; the point within is called the center ; and the bounding line, the circumference.
Side 67 - Couth ward, and a NE wind to the northward, of the equator, over which, in the upper regions of the air, the winds return in the contrary direction. This we accordingly fee happen in the months of October, November December, January, February, and March. 'But when the fun declines to the northward, and heats the land there, the air contiguous to thofe lands is...
Side xvi - If we take four consecutive terms, the product of the extremes will be equal to the product of the means.
Side 67 - North, fo that the whole body of the lower air to the northward of the equator moves towards the northern lands, notwithftanding the equatorial rarefaction, which muft be fupplied by the upper or C returning current.
Side xv - If equal quantities be subtracted from equal quantities, the remainders will be equal. 3. If equal quantities be multiplied by equal quantities, the products will be equal. 4. If equal quantities be divided by equal quantities, the quotients will be equal. 5.
Side 31 - TN a plain triangle, the fum of any two fules is to their difference, as the tangent of half the fum of the angles at the bafe, to the tangent of half their difference.
Side 64 - ... of the equator, the wind is between the North and Eaft, and the more Northerly, the nearer the northern limit. To the Southward of the equator, the wind is between the South and Eaft, and the more Southerly, the nearer the fouthern limit. Between the parallels of 28...
Side 19 - Circumference of every Circle is fuppofed to be Divided into 360 equal Parts called Degrees, and each Degree into 60 equal Parts called Minutes, and each Minute into 60 equal Parts called Seconds, and thefe into Thirds, Fourths, &c.