Description
Excerpt from Manual of Land Surveying: With Tables
The second is called a Diagonal Scale. The unit at the left end has a line diagonally across the ten equal spaces into which the scale is divided by parallel lines. Since the diagonal advances one unit in crossing the eu tire ten spaces, it must advance one-tenth In crossing one space, two-tenths in crossing two spaces, etc. Hence, if _we want a distance of seven spaces, for - example, we must measure the distance the diagonal has advanced when it has reached the line marked 7; Thus, a distance of would extend from the point where the diagonal cuts the seventh parallel to the point where the cross-line marked I cuts the same parallel.
When we want a scale which will measure to hundredths, it can best be arranged as shown in the third part of the figure. The scale is divided longitudinally into ten spaces. The upper and lower lines of the left unit are divided each into ten equal parts. Diagonals are then drawn from 0 in the lower line, to 1 in the upper; from 1 in the lower, to 2 in the upper, etc. It is evident that one of these diagonals in crossing one space ad vances one-tenth of one-tenth of the unit; and hence the Scale can be used for measuring to hundredths.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
The second is called a Diagonal Scale. The unit at the left end has a line diagonally across the ten equal spaces into which the scale is divided by parallel lines. Since the diagonal advances one unit in crossing the eu tire ten spaces, it must advance one-tenth In crossing one space, two-tenths in crossing two spaces, etc. Hence, if _we want a distance of seven spaces, for - example, we must measure the distance the diagonal has advanced when it has reached the line marked 7; Thus, a distance of would extend from the point where the diagonal cuts the seventh parallel to the point where the cross-line marked I cuts the same parallel.
When we want a scale which will measure to hundredths, it can best be arranged as shown in the third part of the figure. The scale is divided longitudinally into ten spaces. The upper and lower lines of the left unit are divided each into ten equal parts. Diagonals are then drawn from 0 in the lower line, to 1 in the upper; from 1 in the lower, to 2 in the upper, etc. It is evident that one of these diagonals in crossing one space ad vances one-tenth of one-tenth of the unit; and hence the Scale can be used for measuring to hundredths.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Details
Publisher - Forgotten Books
Author(s) - David Murray
Hardback
Published Date -
ISBN - 9780265185568
Dimensions - 22.9 x 15.2 x 1.8 cm
Page Count - 269
Paperback
Published Date -
ISBN - 9781332021673
Dimensions - 22.9 x 15.2 x 1.5 cm
Page Count - 271
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.