A Compleat Treatise of Practical Navigation Demonstrated from It's First Principles: Together with All the Necessary Tables. To which are Added, the Useful Theorems of Mensuration, Surveying, and Gauging; with Their Application to Practice. Written for the Use of the Academy in Tower-StreetJ. Brotherton, 1734 - 414 σελίδες |
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Σελίδα 151
... Course of the Winds , and to discover their various Alterations or Shiftings ; each Quadrant of the Horizon intercepted between the Meridian and Prime Vertical , is ufually divided into eight equal Parts , and confequently the whole ...
... Course of the Winds , and to discover their various Alterations or Shiftings ; each Quadrant of the Horizon intercepted between the Meridian and Prime Vertical , is ufually divided into eight equal Parts , and confequently the whole ...
Σελίδα 157
... Course will be 22 ° , 30 ' , and fo of others . 3. The Distance between two places lying on the fame Parallel counted in Miles of the Equator , or the Distance of one place from the Meridian of an- other , counted as above , on the ...
... Course will be 22 ° , 30 ' , and fo of others . 3. The Distance between two places lying on the fame Parallel counted in Miles of the Equator , or the Distance of one place from the Meridian of an- other , counted as above , on the ...
Σελίδα 158
... Course be less than 4 Points , or 45 Degrees , its Compliment , viz . the other Oblique Angle , will be greater than 45 Degrees , and fo the Difference of Latitude will be greater than the Departure ; but if the Course be greater than 4 ...
... Course be less than 4 Points , or 45 Degrees , its Compliment , viz . the other Oblique Angle , will be greater than 45 Degrees , and fo the Difference of Latitude will be greater than the Departure ; but if the Course be greater than 4 ...
Σελίδα 159
... Course , and the other its Compliment ; there- fore having any two of thefe given , we can ( by Sect . 2. ) find the reft ; and hence arifes the Cafes of Plain Sailing , which are as follows . CASE I. Courfe and Distance given , to find ...
... Course , and the other its Compliment ; there- fore having any two of thefe given , we can ( by Sect . 2. ) find the reft ; and hence arifes the Cafes of Plain Sailing , which are as follows . CASE I. Courfe and Distance given , to find ...
Σελίδα 160
... Course A 22 ° , 30 ′ - 9.58284 to the Departure BC 1.08799 fo the Ship has made 12.25 Miles of Departure Eafterly , or has got fo far to the Eastward of her Meridian . Then for the difference of Latitude , or Northing , the Ship has ...
... Course A 22 ° , 30 ′ - 9.58284 to the Departure BC 1.08799 fo the Ship has made 12.25 Miles of Departure Eafterly , or has got fo far to the Eastward of her Meridian . Then for the difference of Latitude , or Northing , the Ship has ...
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A Compleat Treatise of Practical Navigation Demonstrated From It's First ... Archibald Patoun Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
A Compleat Treatise of Practical Navigation Demonstrated From It's First ... Archibald Patoun Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
A Compleat Treatise of Practical Navigation Demonstrated from It's First ... Archibald Patoun Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
alfo alſo Altitude anfwering Arch Bafe becauſe Cafe called Center Chord Circle Circumference Co-fine Compaffes confequently Courfe Courſe Courſe and Diſtance Declination defcribe Degrees Dep Lat Departure Diameter Diff Difference of Latitude difference of Longitude Dift Diſtance Diſtance fail'd diurnal Motion Dominical Letter draw Eaft Earth Eaſt Ecliptick equal Equator Example faid fhall fide fince firft firſt fome given greateſt half Horizon Hours Interfection Julian Period Knot laft laſt Lati leaft lefs length Logar Logarithm meaſured Meridian Miles Minutes Moon muft muſt North Number Obfervation oppofite paffing Parallel Parallel Sailing perpendicular Point Pole proper difference Rectangular Trigonometry reprefent Requir'd Required right Angles right Line Rumb Secant Sect Ship's Sine South Sun's Suppofe a Ship Table Tang Tangent thefe theſe thro tis plain Triangle true tude Weft whofe
Δημοφιλή αποσπάσματα
Σελίδα iv - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, etc.
Σελίδα iv - A diameter of a circle is a straight line drawn through the center and terminated both ways by the circumference, as AC in Fig.
Σελίδα iv - B is an arc, and a right line drawn from one end of an arc to the other is called a chord.
Σελίδα 19 - ... 1 and 6, 2 and 5, 3 and 4, 4 and 3, 5 and 2, 6 and 1 , 5 and 6, or 6 and 5.
Σελίδα 41 - IN a plain triangle, the fum of any two fides is to their difference, as the tangent of half the fum of the angles at the bafe, to the tangent of half their difference.
Σελίδα 39 - In any triangle, the sides are proportional to the sines of the opposite angles, ie. t abc sin A sin B sin C...
Σελίδα ix - KCML, the sum of the two parallelograms or square BCMH ; therefore the sum of the squares on AB and AC is equal to the square on BC.
Σελίδα 5 - AED, is equal to two right angles ; that is, the sum of the angles...
Σελίδα 5 - Thro' C, let CE be drawn parallel to AB ; then since BD cuts the two parallel lines BA, CE ; the angle ECD = B, (by part 3, of the last theo.) and again, since AC cuts the same parallels, the angle ACE = A (by part 2. of the last.) Therefore ECD + ACE = ACD =1 B + AQED THEOREM V. In any triangle ABC, all the three angles taken together are equal to two right angles, viz.
Σελίδα 53 - IT is well known, that the longitude of any place is an arch, of the equator, intercepted between the firft meridian and the meridian of that place ; and that this arch is proportional to the quantity of time that the fun requires to move from the one meridian to the other ; which is at the rate of 24 hours for 360 degrees; one hour for 15 degrees; one minute of time for.