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 15
... oblique course , that is be- tween any two cardinal points , she will make both differ- ence of latitude and departure ; and each in a ratio as she sails more toward the one than the other . 58. If a ship sail more toward the north , or ...
... oblique course , that is be- tween any two cardinal points , she will make both differ- ence of latitude and departure ; and each in a ratio as she sails more toward the one than the other . 58. If a ship sail more toward the north , or ...
Σελίδα 40
... oblique , per- pendicular and tangential . 145. Parallel lines are in the same direction , and be- ing infinitely produced would never meet . 146. Oblique lines are in different directions , and they meet when produced on the side of ...
... oblique , per- pendicular and tangential . 145. Parallel lines are in the same direction , and be- ing infinitely produced would never meet . 146. Oblique lines are in different directions , and they meet when produced on the side of ...
Σελίδα 43
... oblique . 185. A RIGHT ANGLE is formed by two lines perpen- dicular to each other , and contains 90 deg . 186. An OBLIQUE ANGLE is greater , or less than a right angle or 90 deg . - if greater it is called obtuse - if less it is called ...
... oblique . 185. A RIGHT ANGLE is formed by two lines perpen- dicular to each other , and contains 90 deg . 186. An OBLIQUE ANGLE is greater , or less than a right angle or 90 deg . - if greater it is called obtuse - if less it is called ...
Σελίδα 45
... circles . 203. In plane trigonometry the sides of triangles are formed by the meeting of three straight lines ; and it is divided into right angled , and oblique angled . 204. In right - angled plane trigonometry , one of 45.
... circles . 203. In plane trigonometry the sides of triangles are formed by the meeting of three straight lines ; and it is divided into right angled , and oblique angled . 204. In right - angled plane trigonometry , one of 45.
Σελίδα 46
... oblique angled plane trigonometry all the an- gles are oblique . 206. Every plane triangle has six parts , viz . three sides and three angles ; three of the parts must be giv- en to find the other three ; and one of the given parts must ...
... oblique angled plane trigonometry all the an- gles are oblique . 206. Every plane triangle has six parts , viz . three sides and three angles ; three of the parts must be giv- en to find the other three ; and one of the given parts must ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
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