New American Practical NavigatorU.S. Government Printing Office, 1880 |
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Side 6
... divided into several bands of higher and lower temperature , of which the axis of the Gulf Stream is the hottest , the temperature falling rapidly inshore and more slowly outside . Thus , on a line perpendicular to the axis of the ...
... divided into several bands of higher and lower temperature , of which the axis of the Gulf Stream is the hottest , the temperature falling rapidly inshore and more slowly outside . Thus , on a line perpendicular to the axis of the ...
Side
... divided by the number following it ; as , 72 12 shows that 72 is to be divided by 12 Division may also be denoted by placing two points between the numbers ; thus , 72 : 12 represents 72 divided by 12 ; or by placing the numbers thus ...
... divided by the number following it ; as , 72 12 shows that 72 is to be divided by 12 Division may also be denoted by placing two points between the numbers ; thus , 72 : 12 represents 72 divided by 12 ; or by placing the numbers thus ...
Side 1
... divided ; and the upper number , 1 , is called the numerator , and shows how many of those equal parts are contained in the fraction . And it is evident that if the numerator and denominator be varied in the same ratio , the value of ...
... divided ; and the upper number , 1 , is called the numerator , and shows how many of those equal parts are contained in the fraction . And it is evident that if the numerator and denominator be varied in the same ratio , the value of ...
Side 3
... divided by 12 is 4 . 24 ) 7.000 ( .291 Answer , nearly . 48 220 216 40 24 16 EXAMPLE III . Reduce 3 inches to the decimal of a foot . Since 12 inches1 foot , this fraction is . 12 ) 3.00 25 Answer . EXAMPLE V. Reduce 1 foot and 6 inches ...
... divided by 12 is 4 . 24 ) 7.000 ( .291 Answer , nearly . 48 220 216 40 24 16 EXAMPLE III . Reduce 3 inches to the decimal of a foot . Since 12 inches1 foot , this fraction is . 12 ) 3.00 25 Answer . EXAMPLE V. Reduce 1 foot and 6 inches ...
Side 4
... divided into 360 equal parts , called degrees ; and each degree into 60 equal parts , called fourths , & c .; and an arc is said minutes ; and each minute into 60 equal parts , called seconds ; and so on into thirds , Geometry 4 360.
... divided into 360 equal parts , called degrees ; and each degree into 60 equal parts , called fourths , & c .; and an arc is said minutes ; and each minute into 60 equal parts , called seconds ; and so on into thirds , Geometry 4 360.
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American Practical Navigator: An Epitome of Navigation : Originally by ... Uten tilgangsbegrensning - 1962 |
Vanlige uttrykk og setninger
A.M. Hour angle apparent altitude azimuth calculation Cape central altitude centre chronometer column compass Corr correct altitude corresponding Cosecant Cosine course degrees difference of latitude difference of longitude Dist elapsed equal equator error EXAMPLE feet Funchal given Greenwich Half-sum horizon glass horizontal parallax Hour A.M. hour angle hypotenuse instrument Latitude and Departure lee-way line of numbers lower limb lunar observation mean meridian altitude method middle latitude miles minutes moon moon's Nautical Almanac nearly noon object observed altitude parallel perpendicular place of observation Plane Sailing planet points polar distance Prop proportional logarithm refraction remainder rule sea account Secant semidiameter sextant ship side sine star subtract sun's declination sun's right ascension Suppose Table XXVII taken tangent telescope transit traverse table triangle true altitude true distance true longitude variation wires zenith distance
Populære avsnitt
Side 11 - 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 15 - In any plane triangle, as the sum of the sides about the vertical angle is to their difference, so is the tangent of half the sum of the angles at the base to the tangent of half their difference.
Side 15 - In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference. By Theorem II. we have a : b : : sin. A : sin. B.
Side 6 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Side 254 - Emersion (Em.) the instant of its reappearance at coming out of the shadow. They generally happen when the Satellite is apparently at some distance from the body of Jupiter, except near the opposition of Jupiter to the Sun, when the eclipse takes place near to the body of the planet.
Side 7 - In a right triangle, the side opposite the right angle is called the hypotenuse, and the other two sides the legs.
Side 233 - ... distance, to obtain the approximate Greenwich mean time corresponding to the given distance. If the distance between the Moon and a Star increased or decreased uniformly, the Greenwich...
Side 126 - ... to the depth of 80 or 100 fathoms ; then heave the log, and the number of knots run out in half a minute will be the miles the current sets per hour, and the bearing of the log will show the set of it. There is a very remarkable current, called the GULF STREAM, which sets in a north-east direction along the coast of America, from Cape Florida towards the Isle of Sables...
Side 148 - ... placed by the maker equidistant from each other and parallel to the middle one — therefore, when the middle one is adjusted, the others are so too ; he also places the two transverse wires at right angles to the vertical middle wire. These adjustments are always performed by the maker, and but little liable to derangement. When, however, they happen to get out of order, and the observer wishes to correct them, it is done by loosening the screws which hold the eye-end of the telescope in its...
Side 136 - ... to make the objects appear on the other wire ; if the contact still remains perfect, the axis of the telescope is in proper adjustment ; if not, it must be altered by moving the two screws which fasten, to the up-and-down piece, the collar into which the telescope screws. This adjustment is not very liable to be deranged.