The New American Practical Navigator; Being an Epitome of Navigation; Containing All the Tables Necessary to be Used with the Nauticl AlmanacE. & G.W. Blunt, 1846 - 451 sider |
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Side iv
... logarithms ; and if any difference was found , the numbers were calculated third time by Taylor's logarithms . a Table III . contains the meridional parts for every degree and minute of the quadrant , calculated by the following rule ...
... logarithms ; and if any difference was found , the numbers were calculated third time by Taylor's logarithms . a Table III . contains the meridional parts for every degree and minute of the quadrant , calculated by the following rule ...
Side v
... logarithms , by this rule : Log . sec . lat.log . sine declination - 10.0000000 = log . sine amplitude . Table VIII . contains the right ascensions and declinations of one hundred and eighty stars of the first , second , and third ...
... logarithms , by this rule : Log . sec . lat.log . sine declination - 10.0000000 = log . sine amplitude . Table VIII . contains the right ascensions and declinations of one hundred and eighty stars of the first , second , and third ...
Side vi
... logarithms for three hours . The numbers of this table may be found by subtracting the logarithm of the time in seconds from the log . of 10800 " , or , which is the same thing , by the following rule : Prop . log . T = 4.0334738 - log ...
... logarithms for three hours . The numbers of this table may be found by subtracting the logarithm of the time in seconds from the log . of 10800 " , or , which is the same thing , by the following rule : Prop . log . T = 4.0334738 - log ...
Side vii
... logarithms , and above a thousand errors were discovered in the second edition of the Requisite Tables , most of ... logarithms . Table XXVI . , containing the common logarithms of numbers , was compared with Sherwin's , Hutton's , and ...
... logarithms , and above a thousand errors were discovered in the second edition of the Requisite Tables , most of ... logarithms . Table XXVI . , containing the common logarithms of numbers , was compared with Sherwin's , Hutton's , and ...
Side viii
... logarithms , as follows : To the constant logarithm 0.07345 add the log . secant of A ; find this in the column of log . tangents , and take out the corresponding natural secant B ; then the correction will be 2 ' ( B - 1.55 . ) The ...
... logarithms , as follows : To the constant logarithm 0.07345 add the log . secant of A ; find this in the column of log . tangents , and take out the corresponding natural secant B ; then the correction will be 2 ' ( B - 1.55 . ) The ...
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The New American Practical Navigator; Being an Epitome of Navigation ... Nathaniel Bowditch Ingen forhåndsvisning tilgjengelig - 2015 |
Vanlige uttrykk og setninger
anchor apparent altitude azimuth bearing cable calculation central index centre chord chronometer circle column compass Corr correct central altitude corresponding Cosec cosine degrees diameter diff difference of latitude difference of longitude Dist divided draw elapsed equal equator error EXAMPLE feet given Greenwich Half-sum horizon glass horizontal parallax hour angle hypotenuse instrument latitude and departure line of numbers line of sines logarithm lower limb mast mean meridian altitude method middle latitude miles minutes moon moon's multiplied Nautical Almanac nearly noon object observed altitude obtained parallel Parallel Sailing passing the meridian perpendicular Plane Sailing points polar distance pole quadrant radius 90 refraction right ascension rule screw sea account secant semidiameter sextant ship ship's side star subtracted sun's declination Suppose taken tangent telescope triangle true altitude true distance true longitude variation wind wires zenith distance
Populære avsnitt
Side 9 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Side 299 - Calm Light air Light breeze Gentle breeze Moderate breeze Fresh breeze Strong breeze Moderate gale Fresh gale Strong gale Whole gale Storm Estimatin Observations at sea Sea like mirror.
Side 156 - ... or taking their difference when of contrary names ; the altitude to be reckoned from the south point of the horizon, when the latitude is north, and the contrary when south ; but when the sum exceeds 90°, it is to be taken from 180°...
Side 10 - In like manner, when it is said, that " triangles on the same base, and between the same parallels, are equal...
Side 102 - If the vessel be double-decked, take the length thereof from the fore part of the main stem, to the after part of the stern post, above the upper deck ; the breadth thereof at the broadest part above the main wales...
Side 29 - To find the logarithm of a vulgar fraction. RULE. Subtract the logarithm of the denominator from the logarithm of the numerator...
Side 6 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc.
Side 119 - Fiini will be the time of high water, at the given place, reckoning from the noon of the given day. If this sum be greater than 12h.
Side 290 - Davit ; a long beam of timber, used as a crane, whereby to hoist the flukes of the anchor to the top of the bow, without injuring the planks of the ship's sides as it ascends.
Side 11 - KCML, the sum of the two parallelograms or square BCMH ; therefore the sum of the squares on AB and AC is equal to the square on BC.