The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtE. Duyckinck, 1811 - 508 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 99.
Σελίδα 235
... latitude , marked Lat . the other for the departure , marked Dep . which names are both at the top and bottom of these columns . The distance is to be found in the column marked Dist . next the left hand margin of the page . EXAMPLE ...
... latitude , marked Lat . the other for the departure , marked Dep . which names are both at the top and bottom of these columns . The distance is to be found in the column marked Dist . next the left hand margin of the page . EXAMPLE ...
Σελίδα 236
... lat . before found , will now be the dep . and the dep . the lat . because 54 is the complement of 35 de- grees to 90 , viz . lat . 45. 59. dep . 64. 52 . 2. Suppose the same course , but the distance 7 chains 90 links , or as many ...
... lat . before found , will now be the dep . and the dep . the lat . because 54 is the complement of 35 de- grees to 90 , viz . lat . 45. 59. dep . 64. 52 . 2. Suppose the same course , but the distance 7 chains 90 links , or as many ...
Σελίδα 237
... Lat . 6. 29 9 7 . Dep . 4. 43 6 1 7.79 6.36 4. 49 , Or opposite 7.00 .79 Lat . 5. 72 Dep . 4. 03 . 64 46 • > 7.79 6. 36 4. 49 THEO . II . When the first meridian passes through the map . If the east meridian distances in the middle of ...
... Lat . 6. 29 9 7 . Dep . 4. 43 6 1 7.79 6.36 4. 49 , Or opposite 7.00 .79 Lat . 5. 72 Dep . 4. 03 . 64 46 • > 7.79 6. 36 4. 49 THEO . II . When the first meridian passes through the map . If the east meridian distances in the middle of ...
Σελίδα 244
... Lat . and St. half Dep . Merid . Dist . N. Area . S. Area N 3.54 6.61 E } 23.3994 E 6.61 13.22 E N 9.65 15.02 E 2 144.9430 E 1.80 16.82 E 0.00 24.92 E 3 E 8.10 33.02 E S 29.44 23.28 E 4 685.3632 W 9.74 13.54 E S 3.87 5.78 E 5 22.3686 W ...
... Lat . and St. half Dep . Merid . Dist . N. Area . S. Area N 3.54 6.61 E } 23.3994 E 6.61 13.22 E N 9.65 15.02 E 2 144.9430 E 1.80 16.82 E 0.00 24.92 E 3 E 8.10 33.02 E S 29.44 23.28 E 4 685.3632 W 9.74 13.54 E S 3.87 5.78 E 5 22.3686 W ...
Σελίδα 246
... lat . and dep . for the several courses and dis- tances , as already taught ; and if the survey be truly taken , the sums of the northings and south- ings will be equal , and also those of the eastings and westings . Then in the next ...
... lat . and dep . for the several courses and dis- tances , as already taught ; and if the survey be truly taken , the sums of the northings and south- ings will be equal , and also those of the eastings and westings . Then in the next ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
acres altitude Answer arch azimuth base bearing blank line centre chains and links chord circle circumferentor Co-sec Co-tang column compasses contained decimal difference distance line divided divisions draw east Ecliptic edge feet field-book figures fore four-pole chains geom given number half the sum Horizon glass hypothenuse inches instrument Lat Dep Lat latitude length logarithm measure meridian distance multiplied natural co-sine natural sine needle Nonius number of degrees object observed off-sets opposite parallel parallelogram pegs perches perpendicular plane pole pole star Portmarnock PROB protractor Quadrant quotient radius right angles right line scale of equal SCHOLIUM screw Secant sect Sextant side sights square station stationary distance subtract Sun's survey taken Tang tangent theo theodolite trapezium triangle ABC trigonometry two-pole chains vane versed sine vulgar fraction whence
Δημοφιλή αποσπάσματα
Σελίδα 38 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Σελίδα 25 - 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, &c.
Σελίδα 197 - RULE. From half the sum of the three sides subtract each side severally.
Σελίδα 106 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Σελίδα 27 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc. Thus BA is the versed sine of the arc AG.