. Deep borehole surveys and problems. Boring. GYROSCOPIC COMPASS METHODS OF SURVEYING 207 Figure 144 shows a plan and elevation of a rotating disc I with a force acting partially on its axis; also its imagined neighboring position II into which the disc is for the time being inclined. (For clarity the drawing is much exag- gerated.) In the plan the narrow ellipse I gives the original position and II the inclined position of the disc. The direc- tion of the disc in plane I in the plan is shown by the hori- zontal diameter AB oi the ellipse. Any mass particle m of the rotating disc I will remain
. Deep borehole surveys and problems. Boring. GYROSCOPIC COMPASS METHODS OF SURVEYING 207 Figure 144 shows a plan and elevation of a rotating disc I with a force acting partially on its axis; also its imagined neighboring position II into which the disc is for the time being inclined. (For clarity the drawing is much exag- gerated.) In the plan the narrow ellipse I gives the original position and II the inclined position of the disc. The direc- tion of the disc in plane I in the plan is shown by the hori- zontal diameter AB oi the ellipse. Any mass particle m of the rotating disc I will remain in this position in conse- quence of its inertia, even if the disc inclines a little due. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Haddock, M. H. (Marshall Henry). New York, McGraw-Hill
Size: 1101px × 2269px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionb, bookpublishernewyorkmcgrawhill
