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 127
... she must be 15 Days old when Full , and 7 when in the first Quarter ; and 221 Days old when in the laft Quarter . Confequently to find in any Month of a given Year the Day of the Moon's Change , and when Full , and when in either Quar ...
... she must be 15 Days old when Full , and 7 when in the first Quarter ; and 221 Days old when in the laft Quarter . Confequently to find in any Month of a given Year the Day of the Moon's Change , and when Full , and when in either Quar ...
Σελίδα 129
... she comes on the Meridian at the fame Time with the Sun on the Day of her Change ; therefore to find her Southing , or time of her com- ing on the Meridian , any Day , we must first find her Age ( by Art . 26. ) for that Day , then this ...
... she comes on the Meridian at the fame Time with the Sun on the Day of her Change ; therefore to find her Southing , or time of her com- ing on the Meridian , any Day , we must first find her Age ( by Art . 26. ) for that Day , then this ...
Σελίδα 206
... she has differ'd her Longitude . By Cor . 4. Art . 1. of this Section it will be As the Co - fine of the Lat . 55 ° , 36 ' is to Radius fo is the Distance fail'd to Min . of Diff . of Long . · 9.75202 10.00000 · 685.6 · 2.83607 - 1213 ...
... she has differ'd her Longitude . By Cor . 4. Art . 1. of this Section it will be As the Co - fine of the Lat . 55 ° , 36 ' is to Radius fo is the Distance fail'd to Min . of Diff . of Long . · 9.75202 10.00000 · 685.6 · 2.83607 - 1213 ...
Σελίδα 211
... she has differ'd her Longitude . First , For the difference of Latitude it will be , by Cafe 1. of Plain Sailing , As Radius is to the Distance 150 10.00000 2.17609 fo is the Co - fine of the Courfe 50 ° , 06 ' 9.80716 to the Diff . of ...
... she has differ'd her Longitude . First , For the difference of Latitude it will be , by Cafe 1. of Plain Sailing , As Radius is to the Distance 150 10.00000 2.17609 fo is the Co - fine of the Courfe 50 ° , 06 ' 9.80716 to the Diff . of ...
Σελίδα 218
... she has come to it will be , by Cafe 3. of Parallel Sailing , As Min . of Diff . of Long . 192 2.28330 is to Departure 126 2.10037 fo is Radius 10.00000 to the Co - fine of the mid . Par . 48 ° , 59 ' 9.81707 Now fince the middle ...
... she has come to it will be , by Cafe 3. of Parallel Sailing , As Min . of Diff . of Long . 192 2.28330 is to Departure 126 2.10037 fo is Radius 10.00000 to the Co - fine of the mid . Par . 48 ° , 59 ' 9.81707 Now fince the middle ...
Άλλες εκδόσεις - Προβολή όλων
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.