Description and Use of a Diagram of Navigation: By which All Problems in Plane, Traverse, Parallel, Middle Latitude and Mercator's Sailing May be Instantly and Accurately Resolved. Adapted to the Capacity of All who Know the Use of Figures. Designed as an Easy Introduction, by Sensible Demonstration, to the Principles, and the Practice of Navigation. With a Diagram EngravedFellowes & Simpson, 1822 - 4 σελίδες |
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Σελίδα 3
... forming the problems in Plane , Traverse , Parallel , Middle Latitude , and Mercator's Sailing , without the aid of any other book or table . The extreme facility of performing , by it , all problems in right angled plane . trigonometry ...
... forming the problems in Plane , Traverse , Parallel , Middle Latitude , and Mercator's Sailing , without the aid of any other book or table . The extreme facility of performing , by it , all problems in right angled plane . trigonometry ...
Σελίδα 5
... formed by the Diagram , if it be well examined in connection with the reading of the solution , the learner will soon posses , the idea of the proportions of the several terms . As all right - angled plane triangles may be , immediately ...
... formed by the Diagram , if it be well examined in connection with the reading of the solution , the learner will soon posses , the idea of the proportions of the several terms . As all right - angled plane triangles may be , immediately ...
Σελίδα 14
... forming with the paral- lels of latitude , equal squares . 49. In plane sailing four terms of proportion are used , viz . the Course , the Distance , the Difference of Latitude , and the Departure ; any two of which being given the ...
... forming with the paral- lels of latitude , equal squares . 49. In plane sailing four terms of proportion are used , viz . the Course , the Distance , the Difference of Latitude , and the Departure ; any two of which being given the ...
Σελίδα 40
... point . 151. If two right lines cross each other in any direc- tion , four angles are formed , which together are equal to 360 ° , and the angles which are opposite are equal . 41 152. Figure in general is a space enclosed by 40.
... point . 151. If two right lines cross each other in any direc- tion , four angles are formed , which together are equal to 360 ° , and the angles which are opposite are equal . 41 152. Figure in general is a space enclosed by 40.
Σελίδα 41
... formed . 158. A CIRCLE is a plane round figure , bounded by a uniform curve line . 159. Geometers also consider a circle as a polygon , whose sides are infinite . 160. From definitions 153 , 154 and 159 it follows that the triangle ...
... formed . 158. A CIRCLE is a plane round figure , bounded by a uniform curve line . 159. Geometers also consider a circle as a polygon , whose sides are infinite . 160. From definitions 153 , 154 and 159 it follows that the triangle ...
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arc of latitude arc or angle chord circle circumference co-sine co-tangent contiguous angle course 3 points course 3 pts course 38 deg COURSE and DEPARTURE Course and Diff course and distance course sailed curve line departure 84 Diagram of Navigation difference of lati difference of latitude difference of longitude direct course dist DISTANCE and DEPARTURE distance sailed ence of longitude Example Example.-A ship sails find the COURSE find the DISTANCE give the course give the diff give the distance Given both LATITUDES Given-one LATITUDE index remaining index set index to meet meet the difference Mercator's sailing merid meridian distance meridional difference middle lat parallel sailing plane sailing proper diff radius be equal required the course right line drawn right-angled plane triangle Rule Rule.-Set the index secant Set the index ship in lat side as radius side marked equator tance tangent traverse table tude