The practice of navigation and nautical astronomy. [With] Tables [and] Supplement to the first ed, Nide 261870 |
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Tulokset 1 - 5 kokonaismäärästä 95
Sivu xx
... Feet subtending an Angle of l ' at Different Distances ... 10. Maritime Positions .. .. 501 502 11. Approximate Variation of the Compass 590 12. Passages . 13. Tide - Hours 592 596 14. Epacts 599 TIDES . 15. Semimenstrual Inequality ...
... Feet subtending an Angle of l ' at Different Distances ... 10. Maritime Positions .. .. 501 502 11. Approximate Variation of the Compass 590 12. Passages . 13. Tide - Hours 592 596 14. Epacts 599 TIDES . 15. Semimenstrual Inequality ...
Sivu 1
... feet into 3 equal parts , each will measure 3 ft . and one - third , or 10 divided by 3 gives the quotient 3 , and 1 over that is , 1 not divided like the rest ; but proceeding now to divide this 1 by 3 , we call the result or quotient ...
... feet into 3 equal parts , each will measure 3 ft . and one - third , or 10 divided by 3 gives the quotient 3 , and 1 over that is , 1 not divided like the rest ; but proceeding now to divide this 1 by 3 , we call the result or quotient ...
Sivu 2
... feet , or 2 yards . 4333 7. The value of a fraction is not changed by multiplying the numerator and denominator by the same number . The term one - half is equivalent to two - quarters , to four - eighths , and so on ; that is , 4 ...
... feet , or 2 yards . 4333 7. The value of a fraction is not changed by multiplying the numerator and denominator by the same number . The term one - half is equivalent to two - quarters , to four - eighths , and so on ; that is , 4 ...
Sivu 8
... feet . I There are 6080 feet , nearly , in 1 such mile ; hence I foot is 700 6080 of 1 mile , and 700 feet 6080 are of 1 mile , which gives o'115 of 1 mile , nearly . Ex . 4. Find what decimal of 1 minute is 42 seconds . I 60 60 I ...
... feet . I There are 6080 feet , nearly , in 1 such mile ; hence I foot is 700 6080 of 1 mile , and 700 feet 6080 are of 1 mile , which gives o'115 of 1 mile , nearly . Ex . 4. Find what decimal of 1 minute is 42 seconds . I 60 60 I ...
Sivu 9
... feet ; then 700 divided by 60-80 gives o * 115 . Ex . 2. ( Ex . 5 , above . ) 8 inches and 3 quarters are 35 ... feet in o'115 of 1 mile . O'115 6082 The next inferior denomination to that of miles ) is here feet , of which the number in ...
... feet ; then 700 divided by 60-80 gives o * 115 . Ex . 2. ( Ex . 5 , above . ) 8 inches and 3 quarters are 35 ... feet in o'115 of 1 mile . O'115 6082 The next inferior denomination to that of miles ) is here feet , of which the number in ...
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The Practice Of Navigation And Nautical Astronomy. [with] Tables [and ... Henry Raper Esikatselu ei käytettävissä - 2019 |
The Practice Of Navigation And Nautical Astronomy. [with] Tables [and ... Henry Raper Esikatselu ei käytettävissä - 2022 |
Yleiset termit ja lausekkeet
add the log altitude alts appears azim azimuth bearing called celestial body celestial equator centre chart chronometer circle colat compass Computation corr correction cosec Course and Distance D.Lat decimal decl declination deviation diff difference direction Dist divided employed equal equator error exceeds feet find the Course fraction given gives greater Greenwich Date height of eye Hence horizon interval latitude less logarithms longitude magnetic magnetic bearing measured meridian miles minutes moon moon's multiplied Nautical Almanac nearly observation parallax parallel Parallel Sailing passes Plane Sailing planet pole prime vertical prop quantity radius reckoned reduce refraction result rhumb line right angles Right Ascension sailing Semid sextant shews ship side sine star subtract sum rejecting tens sun's Traverse Table triangle true true alt variation watch
Suositut otteet
Sivu 41 - 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.
Sivu 147 - Since the apparent altitude is too great on account of refraction, and too small on account of parallax, the diff. between these quantities is the diff. between the true and apparent altitudes. This difference, or the combined effect of parallax and refraction, is called the Correction of Altitude. The moon's Corr. of Alt. is given in Table 39; that of a star is merely its refraction. 439. The SEMI-DIAMETER of a celestial body is half the angle subtended by the diameter of the visible disc. Thus...
Sivu 38 - A parallelogram is a four.sided figure, of which the opposite sides are parallel; and the diameter is the straight line joining two of its opposite angles.
Sivu 19 - The characteristic of a number less than 1 is found by subtracting from 9 the number of ciphers between the decimal point and the first significant digit, and writing — 10 after the result.
Sivu 43 - ... section shall be parallel to the remaining side of the triangle. Let DE be drawn parallel to BC, one of the sides of the triangle ABC: then BD shall be to DA, as CE to EA. Join BE, CD; then the triangle BDE is equal...
Sivu 105 - The distance between two points on the surface of a sphere is the length of the minor arc of a great circle between them.
Sivu 186 - A line drawn from Polaris perpendicular to the line of the Pointers, and on the opposite side to the Great Bear, passes, at 48° distance, through CAPELLA, one of the brightest stars. In this same line, about the same distance on the opposite side of the pole, is a.
Sivu 145 - ... of Altitude are circles parallel to the horizon. 431. ZENITH DISTANCE is the arc included between the zenith and the celestial body, or the angular distance of a body from the zenith of which that arc is the measure. The zenith distance is, therefore, the complement of the altitude to 90°, as Z A.
Sivu 4 - RULE. Multiply all the numerators together for a new numerator, and all the denominators for a new denominator: then reduce the new fraction to its lowest terms.
Sivu 358 - Frigate La Venus, 1836-9, vol. iii. p. 419) paid particular attention to this indication, and remarks that the observations generally shew a lowering of the thermometer on approaching land, but they disprove that the water on a bank is always colder.* 1039. The temperature of the sea has been observed to change several degrees, in intervals of time varying from a few hours to a day and a half previous to a change of wind, the water becoming gradually warmer when the wind was about to blow from a...