Oblate and Prolate Spheroid

| View Cart ⇗ | Info

The shape of the earth is that of a round ball or sphere slightly flattened at two opposite sides. Such a body is termed a spheroid. There are two kinds of spheroids-oblate and prolate; the former as the shape of an orange, the latter that of a lemon. The straight line that runs through the centre of a sphere or spheroid and terminates at the circumference is called the diameter. If the sphere rotates-that is, moves around like a top-the diameter on which it turns is called the axis. In the oblate spheroid the axis is the shorter diameter; in the prolate spheroid the axis is the longer diameter.

Galleries

Astronomy

Source

Edwin J. Houston, The Elements of Physical Geography, for the use of Schools, Academies, and Colleges. (Philadelphia: Eldredge & Brother, 1891) 13

Downloads

TIFF (full resolution)

2400×1269, 1.6 MiB

Large GIF

1024×541, 204.6 KiB

Medium GIF

640×338, 100.1 KiB

Small GIF

320×169, 30.5 KiB