 | 1917 - 906 páginas
...figure of the earth would, therefore, be that pf a prolate spheroid, or one extended at the poles, such as would be formed by the revolution of an ellipse about its longer axis. All this 'seemed quite inconsistent with the observations on the pendulum, as well... | |
 | Victor Tyson Wilson - 1909 - 282 páginas
...considered. revolution of a right line about another right line to which it is parallel ; an ellipsoid, formed by the revolution of an ellipse about one of its axes;* a paraboloid, formed by the revolution of a parabola about its axis; a ayperboloid of revolution of... | |
 | John Alexander Luman - 1914 - 366 páginas
...surface by J of the diameter, or multiply the cube of the diameter by .5236. 1083. A spheroid is a solid formed by the revolution of an ellipse about one of its axes. 1084. To find the volume, or contents, of a spheroid. 1085. RULE. — Multiply the square of the revolving... | |
 | Charles Lane Poor - 1922 - 350 páginas
...is of importance in the discussion of the planetary motions. The important type of bodies are those formed by the revolution of an ellipse about one of its axes. If in the figure the ellipse ANBS be revolved about the axis NS, it will develop a solid, such that... | |
| |
Knowing therefore the absolute distance A x, and the difference of latitude of these two points, we readily find the length of a degree, and thence the length of 360°, or the whole circumference of the earth considered as a sphere. By performing similar... 
