| Charles William Hackley - 1838 - 307 páginas
...celestial sphere. They are so well known that to define them is perhaps superfluous. The equator is that **great circle the plane of which is perpendicular to the axis of the** earth. The axis being the line about which the earth performs its diurnal rotation. This produced to... | |
| Charles William Hackley - 1851 - 372 páginas
...celestial sphere. They are so well known that to define them is perhaps superfluous. The equator is that **great circle the plane of which is perpendicular to the axis of the** earth. The axis being the line about which the earth performs its diurnal rotation. This produced to... | |
| Ireland commissioners of nat. educ - 1861
...A or B, fig. 76, works in what is called the nut or hollow screw. 243. Since the power describes a **circle, the plane of which is perpendicular to the axis of the** cylinder, it acts in a direction parallel to the bases of the inclined planes, of which the screw consists.... | |
| 1863 - 238 páginas
...is always light, that turned away from it, dark. The boundary line between the light and dark sides **is a great circle the plane of which is perpendicular to the** line joining the centres of the earth and the sun. Every place in the enlightened hemisphere has day... | |
| Sir Robert Stawell Ball - 1880 - 459 páginas
...construction as that already described. Attached to the axis, near each of the pivots, is a graduated **circle, the plane of which is perpendicular to the axis of the** pivots. One of these circles is shown in the figure. These circles are fixed to the axis, so that they... | |
| United States. Defense Intelligence Agency - 1967 - 243 páginas
...cylindrical orthomorphic map projection — See oblique Mercator map projection. oblique equator — **A great circle the plane of which is perpendicular to the axis of** an oblique projection. oblique graticule — A fictitious graticule based upon an oblique map projection.... | |
| United States. Naval Oceanographic Office - 1969 - 292 páginas
...is a meridian the plane of which is perpendicular to the axis of a transverse projection. An oblique **equator is a great circle the plane of which is perpendicular to the axis of** an oblique projection. A grid equator is a line perpendicular to a prime grid meridian, at the origin.... | |
| United States. Army Topographic Command - 1969 - 281 páginas
...cylindrical orthomorphic map projection— See oblique Mercator map projection. oblique equator— **A great circle the plane of which is perpendicular to the axis of** an oblique projection. oblique graticule— A fictitious graticule based upon an oblique map projection.... | |
| 1924
...the left of Fig. 27, the point a on the spindle, whether the wheel is turned in or out, moves in a **circle the plane of which is perpendicular to the axis of the** steering-spindle. Thus, no matter in which direction the car is turned, in the view shown, the point... | |
| |