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 4
... equal Parts , and is double the Radius . 16. The Circumference of every Circle is fuppo- fed to be divided into 360 equal Parts , called De- grees ; and each Degree is divided into 60 equal Parts , called Minutes ; and each Minute into ...
... equal Parts , and is double the Radius . 16. The Circumference of every Circle is fuppo- fed to be divided into 360 equal Parts , called De- grees ; and each Degree is divided into 60 equal Parts , called Minutes ; and each Minute into ...
Σελίδα ix
... equal Parts , and is double the Radius . 16. The Circumference of every Circle is fuppo- fed to be divided into 360 equal Parts , called De- grees ; and each Degree is divided into 60 equal Parts , called Minutes ; and each Minute into ...
... equal Parts , and is double the Radius . 16. The Circumference of every Circle is fuppo- fed to be divided into 360 equal Parts , called De- grees ; and each Degree is divided into 60 equal Parts , called Minutes ; and each Minute into ...
Σελίδα ix
... equal , viz . each a Semicircle . 20. Any Part of a Circle ( lefs than A a Semicircle ) contained between two Radii and an Arc , is called a Sector ; thus the Space contained between the two Radii , AC , BC , and the Arch AB , is called ...
... equal , viz . each a Semicircle . 20. Any Part of a Circle ( lefs than A a Semicircle ) contained between two Radii and an Arc , is called a Sector ; thus the Space contained between the two Radii , AC , BC , and the Arch AB , is called ...
Σελίδα 7
... equal , their measures must be so too , i . e . the Arches A C , AD must be equal ; but the whole CAD is a Se- micircle micircle , fince CD , a Line paffing through the Geometrical Propofitions . 7.
... equal , their measures must be so too , i . e . the Arches A C , AD must be equal ; but the whole CAD is a Se- micircle micircle , fince CD , a Line paffing through the Geometrical Propofitions . 7.
Σελίδα 8
... equal to the Sum of two right Angles . For on the point B , defcribing the Circle CAD , it is plain , that CAD is a Semicircle ( by ' 15th ) ; but CAD is equal to CA and AD the measures of the two Angles ; therefore the Sum of the two ...
... equal to the Sum of two right Angles . For on the point B , defcribing the Circle CAD , it is plain , that CAD is a Semicircle ( by ' 15th ) ; but CAD is equal to CA and AD the measures of the two Angles ; therefore the Sum of the two ...
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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
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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.