Epitome of the Art of Navigation: Or, A Short, Easy and Methodical Way to Become a Compleat Navigator ... |
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Page 14
... Diameter of a Circle , is any Right Line drawn thro ' the Center to the Periphery ; it bifecteth the Circle , and is the long- eft Right - line that can be drawn in it , as BAD is a Diameter . Example . BD equal to 60 Inches is given ...
... Diameter of a Circle , is any Right Line drawn thro ' the Center to the Periphery ; it bifecteth the Circle , and is the long- eft Right - line that can be drawn in it , as BAD is a Diameter . Example . BD equal to 60 Inches is given ...
Page 15
... Diameters at Right - angles . Example . BCDEB the Periphery , and A the Center of the given Circle ; in which to draw two Diameters at Right - angles is required . Plate 1. Fig . 12 . 1. Through the Center A , draw the Diameter BAD . 2 ...
... Diameters at Right - angles . Example . BCDEB the Periphery , and A the Center of the given Circle ; in which to draw two Diameters at Right - angles is required . Plate 1. Fig . 12 . 1. Through the Center A , draw the Diameter BAD . 2 ...
Page 16
... Diameter in the touching Point , as BC is a Tangent Line of the Arc BE . 8. Secant cutteth the Periphery , being drawn from the Center ' till it meet the Tangent , as AC is a Secant of the Arc BE . Example . The Chord , Sine , Tangent ...
... Diameter in the touching Point , as BC is a Tangent Line of the Arc BE . 8. Secant cutteth the Periphery , being drawn from the Center ' till it meet the Tangent , as AC is a Secant of the Arc BE . Example . The Chord , Sine , Tangent ...
Page 20
... Diameter of a Circle given ; to find its Periphery . The Rule . As 7 . As { } ; } - { 22 · 3.14159 :: Diameter . Periphery . Example . The Diameter 34 Inches : What's the Periphery ? Anfw . Inches 106.8 Tenths of an Inch . For , As { 7 ...
... Diameter of a Circle given ; to find its Periphery . The Rule . As 7 . As { } ; } - { 22 · 3.14159 :: Diameter . Periphery . Example . The Diameter 34 Inches : What's the Periphery ? Anfw . Inches 106.8 Tenths of an Inch . For , As { 7 ...
Page 21
... Diameter ? Anfw . Inches 34. For as 22.7 :: Inches 106.8 .. 34 Inches the Diameter required . Prob . XX . The Diameter of a Circle given ; to find its Area , or The Rule . { Content . 1. Find its Periphery by Prob . 18. Then say , 2. As ...
... Diameter ? Anfw . Inches 34. For as 22.7 :: Inches 106.8 .. 34 Inches the Diameter required . Prob . XX . The Diameter of a Circle given ; to find its Area , or The Rule . { Content . 1. Find its Periphery by Prob . 18. Then say , 2. As ...
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Epitome of the Art of Navigation: Or, a Short, Easy and Methodical Way to ... James Atkinson,William Mountaine No preview available - 2018 |
Common terms and phrases
adjacent Angle alfo Anfw Angle ACB Angle BAC Angle oppofite Axiom Barbadoes Cafe Center Column Compafs Courfe Courſe defcribed Departure Diameter Diff Difference of Latitude Difference of Longitude Diſtance Dominical Letter draw Eaft Eafterly Ecliptic Epact equal Equator Equinoctial Example faid fame fecond Feet fhew fheweth firft firſt fubtract Globe greateſt half hath Horizon Hour Hypothenufe AC Inches Leag Leagues lefs Leg BC Line Lizard Logarithm meaſured Merid Meridian Altitude Minutes Sine neareſt North Number Obfervation Oblique Circle Oblique Triangle Parallel perpendicular Plane Plate Points Pole Primitive Circle Prob Proportion Radius Remainder reprefented Right Afcenfion Right Circle Rule Rumb Ship fails Ship's Side AC Side CD Sine Complement Sine Tangent Secant Solid Content South Latitude Spheric Geometry Spheric Triangle Spheric Trigonometry Star's Sun's Altitude Sun's Azimuth Sun's Declination Sun's Place thefe theſe Trigono tude Weft Wefterly whofe
Popular passages
Page 123 - We infer from this that a triangle can be constructed with three given lines as sides, when the sum of any two sides is greater than the third side.
Page 47 - BD, is to their Difference ; fo is the Tangent of half the Sum of the Angles BDC and BCD, to the Tangent of half their Difference.
Page 159 - AZIMCTR circles, called azimuths, or vertical circles, are great circles of the sphere, intersecting each other in the zenith and nadir, and cutting the horizon at right angles in all the points thereof.
Page 149 - ... globe. A Strait is a narrow part of the ocean lying between two shores, and opening a way into some sea, as the Straits of Gibraltar that lead into the Mediterranean Sea. A Creek is a small narrow part of the sea or river, that goes up but a little way into the land.
Page 138 - ... the angle CGH (1. PI. Tr.): But since CG, HG are at right angles to DGB, which is the common section of the planes CBD, ABD, the angle CGH will be equal to the inclination of these planes (6.
Page 107 - Difference of Latitude, is to the Difference of Longitude ; fo is the Sine Complement of the Middle Latitude, to the Tangent of the Courfe, or more briefly thus : As Diff.
Page 216 - ... as the radius is to the tangent of the latitude ; so is the tangent of the sun's declination to the sine of the ascensional difference sought. This, converted into time, shows how much he rises...
Page ii - Navigatio Britannica: or, a complete System of Navigation, in all its Branches, both with regard to theory and practice; containing Geometry, Plane and Spherical Trigonometry, Astronomy, and the doctrine of the Sphere, &c.
Page 137 - Is to the cosine of half their difference, So is the cotangent of half the contained angle To the tangent of half the sum of the other angle*.
Page 207 - OH the globe by the divisions on the quadrant of altitude, in its motion about the body of the globe, when screwed to the zenith. PARALLELS of declination, in astronomy, are the same with parallels of latitude, in geography. PARALLEL sphere...