A Complete Epitome of Practical Navigation, and Nautical Astronomy: Containing All Necessary Instructions for Keeping a Ship's Reckoning at Sea, Volumen1Imray, Laurie, Norie and Wilson, 1917 - 595 páginas |
Dentro del libro
Resultados 1-5 de 87
Página vii
... pass ; Divisions of the Compass Card into Points and Degrees ; Compass Bowl ; Binnacle , etc .; The Course ; Rhumbs ; Steering Compass ; Azimuth Compass ; The Standard Compass ; Dead Reckoning , etc. 98 117 121 128 Page THE SEXTANT ...
... pass ; Divisions of the Compass Card into Points and Degrees ; Compass Bowl ; Binnacle , etc .; The Course ; Rhumbs ; Steering Compass ; Azimuth Compass ; The Standard Compass ; Dead Reckoning , etc. 98 117 121 128 Page THE SEXTANT ...
Página 29
... passing through one extremity of the arc , and continued till it meets a line drawn from the centre through the other end of the arc ; thus A B is the tangent of the arc D B. The SECANT of an arc is a line drawn from the centre of the ...
... passing through one extremity of the arc , and continued till it meets a line drawn from the centre through the other end of the arc ; thus A B is the tangent of the arc D B. The SECANT of an arc is a line drawn from the centre of the ...
Página 31
... pass CASE IST . through a given point D. Take the nearest distance between the given point D and the line A B ; with that distance set one foot of the compasses on any part of the line A B , as at C , and describe the arc E ; from the ...
... pass CASE IST . through a given point D. Take the nearest distance between the given point D and the line A B ; with that distance set one foot of the compasses on any part of the line A B , as at C , and describe the arc E ; from the ...
Página 33
... pass through the other points B and C , as required . In this manner the centre of a circle may be found ; for , taking any three points in the circumference , and proceeding as directed above , the lines meeting at O will give the ...
... pass through the other points B and C , as required . In this manner the centre of a circle may be found ; for , taking any three points in the circumference , and proceeding as directed above , the lines meeting at O will give the ...
Página 35
... passes in A ( the chord of 60 degrees being taken as before ) , draw the arc E D , on which set off 48 degrees from E to D ; through A and D draw the line A C ; then will the angle B A C be made , containing 48 degrees , as was required ...
... passes in A ( the chord of 60 degrees being taken as before ) , draw the arc E D , on which set off 48 degrees from E to D ; through A and D draw the line A C ; then will the angle B A C be made , containing 48 degrees , as was required ...
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Otras ediciones - Ver todas
A Complete Epitome of Practical Navigation, and Nautical Astronomy ... John William Norie,J. W. Saul Sin vista previa disponible - 2018 |
A Complete Epitome of Practical Navigation, and Nautical Astronomy ... John William Norie,William Henry Rosser Sin vista previa disponible - 2018 |
A Complete Epitome of Practical Navigation, and Nautical Astronomy ... John William Norie,J W Saul Sin vista previa disponible - 2022 |
Términos y frases comunes
apparent azimuth bearing centre chart chronometer circle co-latitude Co-sec column compass course Corr correction course and distance dead reckoning decl declination departure deviation Diff difference of latitude difference of longitude direction dist distance run earth east equal equator equinoctial Example feet given Greenwich date Greenwich mean heavenly body horizon hour angle index error interval leeway logarithm magnetic course meridian altitude middle latitude miles millibars moon moon's Nautical Almanac noon Northern Hemisphere observed altitude parallax parallel parallel sailing plane plane sailing point of Aries polar distance pole port position prime vertical refraction required the latitude right angles right ascension sailing set and drift sextant ship ship's head side sidereal star subtract tide Traverse Table triangle true altitude true course variation vernier vertical wind zenith distance ΙΟ
Pasajes populares
Página 223 - January 31, February 28, March 31, April 30, May 31, June 30, July 31, August 31, September 30, October 31, November 30, December 31.
Página 37 - The square described on the hypothenuse of a right-angled triangle is equivalent to the sum of the squares described on the other two sides.
Página 221 - Ascension, and the interval between the departure of any meridian from the mean Sun and its succeeding return to it is the duration of the mean solar day. Clocks and chronometers are adjusted to mean solar time ; so that a complete revolution (through 24 hours) of the hour hand of...
Página 26 - The circumference of a circle is divided into 360 equal parts, called degrees; each degree into 60 minutes ; each minute into 60 seconds.
Página 199 - The Ram, the Bull, the heavenly Twins, And next the Crab the Lion shines, The Virgin and the Scales ; The Scorpion, Archer, and He-goat, The Man that holds the watering-pot, And Fish with glittering tails.
Página 21 - DIVISION BY LOGARITHMS. RULE. From the logarithm of the dividend subtract the logarithm of the divisor, and the number answering to the remainder will be the quotient required.
Página 73 - The shortest DISTANCE between two points on the surface of a sphere is the arc of a great circle passing through those points.
Página 36 - Jf a straight line fall upon two parallel straight lines, it makes the alternate angles equal to one another ; and the exterior angle equal to the interior and opposite upon the same side ; and likewise the two interior angles upon the same side together equal to two right angles.
Página 161 - The relative effects of these two bodies on the oceanic waters are directly as their mass, and inversely as the square of their distance...
Página 36 - IF a straight line falling upon two other straight lines makes the exterior angle equal to the interior and opposite upon the same side of the line ; or makes the interior angles upon the same side together equal to two right angles ; the two straight lines shall be parallel to one another.