Discovery by Cassini of the oblateness of the planet Jupiter.
Two facts are revealed by the oblateness of the earth: 1.
Discovery by Newton of theoblateness of the Earth.
There are other departures from a spherical surface than the oblateness just referred to, and these departures, while not large, are believed to be full of significance.
The oblateness of the geoid is well understood from accepted hypotheses to be the result of the once more rapid rotation of the planet when its materials were more plastic, and hence more responsive to deformation.
It was pointed out that the earth’s oblateness was proven by comparison of the measured degrees of latitude upon the earth’s surface in lower and higher latitudes, the degree being found longer as the pole is approached.
This oblateness of the spheroid was proven by geodesists when they came to compare the lengths of measured degrees of arc upon meridians in high and in low latitudes.
It was thus when the difference in the rates of a clock at the equator, and nearer the poles, gave data for calculating the oblateness of the earth, and accounting for the precession of the equinoxes.
From its rotation there result the oblateness of its form, the alternations of day and night, and (under the influence of the moon) the tides, aqueous and atmospheric.
Thus, then, according to the oblateness of the spheroid and the bulkiness of the detached ring, will the greatest thickness of that ring be in the direction of its plane, or in a direction perpendicular to its plane.
That is to say, according to the oblateness of a rotating spheroid, the detached ring may be either a hoop-shaped ring or a quoit-shaped ring.
Thus the tendency of the centrifugal force to produce oblateness, is opposed not only by the force of gravity but by another force of great intensity; and hence the degree of oblateness produced is relatively small.
It is produced, even in a sphere which is (at present at least,) partly solid and partly fluid; and the oblatenessof the earth is accounted for in this way.
Bessel, however, holds that the oblateness of Jupiter proves that his interior is somewhat denser than his exterior.
From its rotation there result the oblateness of its form, the alternations of day and night, and (under the influence of the moon and in a smaller degree the sun) the tides, aqueous and atmospheric.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "oblateness" in a variety of sentences. We hope that you will now be able to make sentences using this word.
