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 sider |
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Resultat 1-5 av 71
Side 70
... South , the Antartic . 4. Circles upon a Sphere , are either Great or Leffer . A Great Circle , is that whofe Plain passes through the Center of the Sphere , or whofe Dia- meter is equal to the Diameter of the Sphere . A Leffer Circle ...
... South , the Antartic . 4. Circles upon a Sphere , are either Great or Leffer . A Great Circle , is that whofe Plain passes through the Center of the Sphere , or whofe Dia- meter is equal to the Diameter of the Sphere . A Leffer Circle ...
Side 71
... South , according as it lies upon the North or South Side of the Equator . 9. Since by the Rotation of the Earth about it's Axis , every Point upon it's Surface defcribes a Circle , ' tis plain all the Points between the Equator and ...
... South , according as it lies upon the North or South Side of the Equator . 9. Since by the Rotation of the Earth about it's Axis , every Point upon it's Surface defcribes a Circle , ' tis plain all the Points between the Equator and ...
Side 73
... South and North Points ; and the other princi- pal Vertical , call'd the prime Vertical , is that which cuts the Meridian at right Angles , and meets the L Hori- Horizon in two oppofite points , call'd the Eaft and GEOGRAPHY and ...
... South and North Points ; and the other princi- pal Vertical , call'd the prime Vertical , is that which cuts the Meridian at right Angles , and meets the L Hori- Horizon in two oppofite points , call'd the Eaft and GEOGRAPHY and ...
Side 74
... South and North Points , and C will represent the East and West Points in the Horizon of A. Let S be any heavenly Object , and ASN a vertical or azimuth Circle paffing thro ' the Cen- ter of the Object ; alfo KS it's parallel of ter 74 ...
... South and North Points , and C will represent the East and West Points in the Horizon of A. Let S be any heavenly Object , and ASN a vertical or azimuth Circle paffing thro ' the Cen- ter of the Object ; alfo KS it's parallel of ter 74 ...
Side 87
... South Pole A must be as far , from the Terminator LF in the darkned Hemisphere . Thro ' the points L and F , draw the Circles LK , FG parallel to the Equator , and thefe Circles are called Polar Cir- cles , that towards the North is ...
... South Pole A must be as far , from the Terminator LF in the darkned Hemisphere . Thro ' the points L and F , draw the Circles LK , FG parallel to the Equator , and thefe Circles are called Polar Cir- cles , that towards the North is ...
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A Compleat Treatise of Practical Navigation Demonstrated From It's First ... Archibald Patoun Ingen forhåndsvisning tilgjengelig - 2017 |
A Compleat Treatise of Practical Navigation Demonstrated From It's First ... Archibald Patoun Ingen forhåndsvisning tilgjengelig - 2017 |
A Compleat Treatise of Practical Navigation Demonstrated from It's First ... Archibald Patoun Ingen forhåndsvisning tilgjengelig - 2016 |
Vanlige uttrykk og setninger
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Populære avsnitt
Side 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.
Side 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.
Side iv - B is an arc, and a right line drawn from one end of an arc to the other is called a chord.
Side 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.
Side 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.
Side 39 - In any triangle, the sides are proportional to the sines of the opposite angles, ie. t abc sin A sin B sin C...
Side 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.
Side 5 - AED, is equal to two right angles ; that is, the sum of the angles...
Side 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.
Side 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.