A Treatise of Practical Surveying: Which is Demonstrated from Its First Principles ... |
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Σελίδα 6
The third section gives an account of the chains and measures used in Great -
Britain and Ireland , methods of ... The fifth section contains a new , and much
more concise method of determining the areas of surveys from the field - notes ,
or by ...
The third section gives an account of the chains and measures used in Great -
Britain and Ireland , methods of ... The fifth section contains a new , and much
more concise method of determining the areas of surveys from the field - notes ,
or by ...
Σελίδα 7
Robert Gibson. from the field - notes , or by calculation than any hitherto
published ; and I venture to assert , that it is impossible ( from the nature of right -
lined figures ) that any method or methods more concise than this can be
investigated .
Robert Gibson. from the field - notes , or by calculation than any hitherto
published ; and I venture to assert , that it is impossible ( from the nature of right -
lined figures ) that any method or methods more concise than this can be
investigated .
Σελίδα 244
From what has been said it is plain , that from this method any fault committed in
a survey can be readily determined , and therefore must be much preferable to
the present method of taking diagonals , or the bearings and lengths of lines ...
From what has been said it is plain , that from this method any fault committed in
a survey can be readily determined , and therefore must be much preferable to
the present method of taking diagonals , or the bearings and lengths of lines ...
Σελίδα 250
By the methods here laid down I have reduced a map from a scale of 40 to one of
20 perches to an inch , which ... a parallelogram , proportional compasses , or
any other method I ever met with , though the figures to be reduced were ever so
...
By the methods here laid down I have reduced a map from a scale of 40 to one of
20 perches to an inch , which ... a parallelogram , proportional compasses , or
any other method I ever met with , though the figures to be reduced were ever so
...
Σελίδα 280
THA HERE are three methods whereby this may be performed , for the
observations may be made either on the water or on ... This method I omit for two
reasons ; first because it is to be deduced from the writers of navigation : and ,
secondly ...
THA HERE are three methods whereby this may be performed , for the
observations may be made either on the water or on ... This method I omit for two
reasons ; first because it is to be deduced from the writers of navigation : and ,
secondly ...
Τι λένε οι χρήστες - Σύνταξη κριτικής
Δεν εντοπίσαμε κριτικές στις συνήθεις τοποθεσίες.
Συχνά εμφανιζόμενοι όροι και φράσεις
acres angle Answer base bearing called centre chains chord circle Co-sec Co-sine Co-tang column contained decimal difference direct distance divided division draw drawn east edge equal EXAMPLE feet field field-book figures four four-pole fourth give given greater ground half height Hence inches laid land Lat Dep length less logarithm manner measure method multiplied needle object observe opposite parallel perches perpendicular plain plane Plate pole prob PROBLEM proportion quantity quotient radius reduce remainder right angles right line root scale Secant sect side sights sine square station suppose survey taken Tang tangent theo THEOREM third triangle triangle ABC true turn variation whence whole
Δημοφιλή αποσπάσματα
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 207 - ... that triangles on the same base and between the same parallels are equal...
Σελίδα 40 - 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 43 - Triangles upon equal bases, and between the same parallels, are equal to one another.
Σελίδα 103 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Σελίδα 31 - Figures which consist of more than four sides are called polygons ; if the sides are all equal to each other, they are called regular polygons. They sometimes are named from the number of. their sides, as a five-sided figure is called a pentagon, one of six sides a hexagon, &"c.
Σελίδα 31 - ... they are called regular polygons. They sometimes are named from the number of their sides, as a five-sided figure is called a pentagon, one of. six sides a hexagon, &c. but if their sides are not equal to each other, then they are called irregular polygons, as an irregular pentagon, hexagon, &c.
Σελίδα 45 - The hypothenuse of a right-angled triangle may be found by having the other two sides ; thus, the square root of the sum of the squares of the base and perpendicular, will be the hypothenuse. Cor. 2. Having the hypothenuse and one side given to find the other; the square root of the difference of the squares of the hypothenuse and given side will be the required side.
Σελίδα 265 - As the length of the whole line, Is to 57.3 Degrees,* So is the said distance, To the difference of Variation required. EXAMPLE. Suppose it be required to run a line which some years ago bore N. 45°.
Σελίδα 32 - Things that are equal to one and the same thing are equal to one another." " If equals be added to equals, the wholes are equal." " If equals be taken from equals, the remainders are equal.
Πληροφορίες βιβλιογραφίας
| Τίτλος | A Treatise of Practical Surveying: Which is Demonstrated from Its First Principles ... |
| Συγγραφέας | Robert Gibson |
| Έκδοση | 3 |
| Εκδότης | Lewis Nichols, 1806 |
| Πρωτότυπο από | το Πανεπιστήμιο του Μίτσιγκαν |
| Ψηφιοποιήθηκε στις | 26 Μάιος 2007 |
| Μέγεθος | 452 σελίδες |
| Εξαγωγή αναφοράς | BiBTeX EndNote RefMan |