| John Brinkley - Astronomy - 1836 - 287 pages
...if the earth had been originally in a fluid state, its form would be accurately that of a spheroid, **generated by the revolution of an ellipse about its minor axis. The** proportion of its diameters would then be readily investigated from a comparison of the lengths of... | |
| George Poulett Scrope - Geology - 1858 - 258 pages
...accumulate round the margin of the orifice into a hill, necessarily approaching more or less in figure **to the solid which would be generated by the revolution of an** obtuse scalene triangle round one of the angles of its base; and this hill is called a volcanic cone,... | |
| George Poulett Scrope - Geology - 1858 - 258 pages
...accumulate round the margin of the orifice into a hill, necessarily approaching more or less in figure **to the solid which would be generated by the revolution of an** obtuse scalene triangle round one of the angles of its base ; and this hill is called a volcanic cone,... | |
| William Chauvenet - 1864
...to apply. The figure of the earth is very nearly that of an oblate spheroid, that is, an ellipsoid **generated by the revolution of an ellipse about its minor axis. The** section made by a plane through the earth's axis is nearly an ellipse, of which the major axis is the... | |
| William Chauvenet - Astronomical instruments - 1864
...to apply. The figure of the earth is very nearly that of an oblate spheroid, that is, an ellipsoid **generated by the revolution of an ellipse about its minor axis. The** section made by a plane through the earth's axis is nearly an ellipse, of which the major axis is the... | |
| Philip Thomas Main - Astronomy - 1868 - 192 pages
...have stated that the Earth is almost a sphere : its exact figure is an oblate spheroid, i. & a figure **generated by the revolution of an ellipse about its minor axis. The** minor axis of the ellipse, or the shortest diameter of the Earth, is about 7900 miles, and is less... | |
| Alexander Charles Ewald - 1870
...earth's curvature. The shape of the earth is very nearly that of an oblate spheroid, that is, the solid **generated by the revolution of an ellipse about its minor axis. The** earth has a continual motion of rotation, which is performed once in every twenty-four sidereal hours,... | |
| Charles Joyce White - Astronomy - 1872 - 272 pages
...at the extremities of which the curvature is the greatest. The form of the earth, then, is that of **the solid which would be generated by the revolution of an ellipse about its minor axis,** which solid is called in Geometry an oblate ttpheroid. A more common but less accurate name given to... | |
| De Volson Wood - Geometry, Analytic - 1882 - 333 pages
...— (5) which is the equation of the surface of the prolate ellipsoid. 232. The Oblate Ellipsoid may **be generated by the revolution of an ellipse about its minor axis.** Let the axfs of s be the axis of revolution. Then proceeding as before, we have (6) 233. The Ellipsoid... | |
| Engineering - 1880
...Written for VAN NOSTRAND'S MAGAZINE. II. — THE EARTH AS A SPHEROID. As an oblate spheroid is a volume **generated by the revolution of an ellipse about its minor axis, the** equator and all the sections of the spheroid parallel to the equator are circles, and all sections... | |
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