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 σελίδες |
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Αποτελέσματα 1 - 5 από τα 100.
Σελίδα 1
... lower number , 4 , is called the denominator of the fraction , showing into how many parts the whole or integer is divided ; and the upper number , 1 , is called the numerator , and shows how many of those equal parts are contained in ...
... lower number , 4 , is called the denominator of the fraction , showing into how many parts the whole or integer is divided ; and the upper number , 1 , is called the numerator , and shows how many of those equal parts are contained in ...
Σελίδα 3
... lower denominations of the same quantity ; thus , if the fraction was the decimal of a yard , by multiplying it by 3 we have its value in feet and parts ; if we multiply this by 12 , the product is its value in inches and parts ; and in ...
... lower denominations of the same quantity ; thus , if the fraction was the decimal of a yard , by multiplying it by 3 we have its value in feet and parts ; if we multiply this by 12 , the product is its value in inches and parts ; and in ...
Σελίδα 22
... lower line . The use of this Scale in solving the usual problems of Trigonometry , Plane Sailing , Middle Latitude Sailing , and Mercator's Sailing , will be given in the course of this work ; but it will be unnecessary to enter into an ...
... lower line . The use of this Scale in solving the usual problems of Trigonometry , Plane Sailing , Middle Latitude Sailing , and Mercator's Sailing , will be given in the course of this work ; but it will be unnecessary to enter into an ...
Σελίδα 48
... lower part will be the south ; the right hand east , and the left west . Draw the north and south line to represent the meridian of the place the ship sails from ; then , if the ship's course is to the southward , mark the upper end of ...
... lower part will be the south ; the right hand east , and the left west . Draw the north and south line to represent the meridian of the place the ship sails from ; then , if the ship's course is to the southward , mark the upper end of ...
Σελίδα 87
... lower the south , the right hand the east , and the left hand the west ( which is generally supposed in charts , unless the contrary is expressly mentioned ) . If the chart does not commence at the equator , but is to serve for a ...
... lower the south , the right hand the east , and the left hand the west ( which is generally supposed in charts , unless the contrary is expressly mentioned ) . If the chart does not commence at the equator , but is to serve for a ...
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Άλλες εκδόσεις - Προβολή όλων
The New American Practical Navigator; Being an Epitome of Navigation ... Nathaniel Bowditch Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
Συχνά εμφανιζόμενοι όροι και φράσεις
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
Δημοφιλή αποσπάσματα
Σελίδα 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.
Σελίδα 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.
Σελίδα 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°...
Σελίδα 10 - In like manner, when it is said, that " triangles on the same base, and between the same parallels, are equal...
Σελίδα 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...
Σελίδα 29 - To find the logarithm of a vulgar fraction. RULE. Subtract the logarithm of the denominator from the logarithm of the numerator...
Σελίδα 6 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.